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sidebar navigation header on android drawer layout

I'm building the sidebar nav in my project i have created the banner with LinearLayout inside LinearLayout.If i remove the LinearLayout and put RealtiveLayout then app works fine.
Following is the complete stack trace of my code:
please help me to get out of this error
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.lenovo.jdstudio, PID: 7912
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.lenovo.jdstudio/com.example.lenovo.jdstudio.MainActivity}: android.view.InflateException: Binary XML file line #0: Error inflating class android.support.design.widget.NavigationView
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2377)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2429)
at android.app.ActivityThread.access$800(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1342)
at android.os.Handler.dispatchMessage(Handler.java:110)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:5333)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:828)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:644)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.view.InflateException: Binary XML file line #0: Error inflating class android.support.design.widget.NavigationView
at android.view.LayoutInflater.createView(LayoutInflater.java:620)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:696)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:755)
at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:287)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139)
at com.example.lenovo.jdstudio.MainActivity.onCreate(MainActivity.java:16)
at android.app.Activity.performCreate(Activity.java:5343)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1088)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2331)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2429) 
at android.app.ActivityThread.access$800(ActivityThread.java:151) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1342) 
at android.os.Handler.dispatchMessage(Handler.java:110) 
at android.os.Looper.loop(Looper.java:193) 
at android.app.ActivityThread.main(ActivityThread.java:5333) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:515) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:828) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:644) 
at dalvik.system.NativeStart.main(Native Method) 
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Constructor.constructNative(Native Method)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at android.view.LayoutInflater.createView(LayoutInflater.java:594)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:696) 
at android.view.LayoutInflater.rInflate(LayoutInflater.java:755) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:492) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:397) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:353) 
at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:287) 
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139) 
at com.example.lenovo.jdstudio.MainActivity.onCreate(MainActivity.java:16) 
at android.app.Activity.performCreate(Activity.java:5343) 
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1088) 
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2331) 
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2429) 
at android.app.ActivityThread.access$800(ActivityThread.java:151) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1342) 
at android.os.Handler.dispatchMessage(Handler.java:110) 
at android.os.Looper.loop(Looper.java:193) 
at android.app.ActivityThread.main(ActivityThread.java:5333) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:515) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:828) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:644) 
at dalvik.system.NativeStart.main(Native Method) 
Caused by: java.lang.UnsupportedOperationException: Can't convert to dimension: type=0x12
at android.content.res.TypedArray.getDimensionPixelSize(TypedArray.java:464)
at android.view.ViewGroup$MarginLayoutParams.<init>(ViewGroup.java:6402)
at android.widget.LinearLayout$LayoutParams.<init>(LinearLayout.java:2048)
at android.widget.LinearLayout.generateLayoutParams(LinearLayout.java:1960)
at android.widget.LinearLayout.generateLayoutParams(LinearLayout.java:61)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:757)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:758)
at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
at android.support.design.internal.NavigationMenuPresenter.inflateHeaderView(NavigationMenuPresenter.java:211)
at android.support.design.widget.NavigationView.inflateHeaderView(NavigationView.java:267)
at android.support.design.widget.NavigationView.<init>(NavigationView.java:176)
at android.support.design.widget.NavigationView.<init>(NavigationView.java:98)
at java.lang.reflect.Constructor.constructNative(Native Method) 
at java.lang.reflect.Constructor.newInstance(Constructor.java:423) 
at android.view.LayoutInflater.createView(LayoutInflater.java:594) 
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:696) 
at android.view.LayoutInflater.rInflate(LayoutInflater.java:755) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:492) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:397) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:353) 
at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:287) 
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139) 
at com.example.lenovo.jdstudio.MainActivity.onCreate(MainActivity.java:16) 
at android.app.Activity.performCreate(Activity.java:5343) 
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1088) 
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2331) 
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2429) 
at android.app.ActivityThread.access$800(ActivityThread.java:151) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1342) 
at android.os.Handler.dispatchMessage(Handler.java:110) 
at android.os.Looper.loop(Looper.java:193) 
at android.app.ActivityThread.main(ActivityThread.java:5333) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:515) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:828) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:644) 
at dalvik.system.NativeStart.main(Native Method) 
D/dalvikvm: threadid=11: exiting
D/dalvikvm: threadid=11: bye!
Application terminated.
Following is my navigation_header.xml file
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/colorPrimary">
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingBottom="20dp">
<ImageView
android:id="#+id/imageView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="20dp"
android:layout_marginRight="#id/textView"
app:srcCompat="#mipmap/ic_home_white_24dp" />
<TextView
android:id="#+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="20dp"
android:layout_toEndOf="#+id/imageView2"
android:text="Home"
android:textAlignment="center"
android:textColor="#ffffff"
android:textSize="17sp" />
</LinearLayout>
</LinearLayout>
Following is my MainActivity.java
package com.example.lenovo.jdstudio;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.MenuItem;
public class MainActivity extends AppCompatActivity {
private DrawerLayout mDrawerLayout ;
private ActionBarDrawerToggle mToggle;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mDrawerLayout =(DrawerLayout) findViewById(R.id.drawer_layout);
mToggle = new ActionBarDrawerToggle(this,mDrawerLayout,R.string.open,R.string.close);
mDrawerLayout.addDrawerListener(mToggle);
mToggle.syncState();
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
if(mToggle.onOptionsItemSelected(item))
{
return true;
}
return super.onOptionsItemSelected(item);
}
}

Try this remove android:layout_marginRight="#id/textView" from your ImageView and apply margin in DP
<ImageView
android:id="#+id/imageView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="20dp"
android:layout_marginRight="20dp"
app:srcCompat="#mipmap/ic_home_white_24dp" />

you have putted view id on margin
putting dp on margin will may solve your problem

code is not running on Kitkat version but works on Lollipop or higher platforms

code is not running on kitkat platform. but when it run on lollipop or higher platform it run without any error
here is the code
package com.digroof.whatslinkshare;
import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import android.support.annotation.RequiresApi;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.view.View;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Button;
import android.widget.Toast;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.Socket;
public class Main_list extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
Button b1,b2,b3,b4;
#RequiresApi(api = Build.VERSION_CODES.KITKAT)
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main_list);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab = (FloatingActionButton)
findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent myIntent=new Intent(Intent.ACTION_SEND);
myIntent.setType("text/plain");
String shareBody= "null";
String sharesub="null";
myIntent.putExtra(Intent.EXTRA_SUBJECT,shareBody);
myIntent.putExtra(Intent.EXTRA_TEXT,sharesub);
startActivity(Intent.createChooser(myIntent,"Share Using"));
}
});
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open,
R.string.navigation_drawer_close);
drawer.setDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView)
findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
b1=(Button)findViewById(R.id.button9);
b2=(Button)findViewById(R.id.button10);
b3=(Button)findViewById(R.id.button11);
b4=(Button)findViewById(R.id.button12);
b1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent i=new Intent(Main_list.this,Discord_main.class);
startActivity(i);
}
});
b2.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent i=new Intent(Main_list.this,MainActivity.class);
startActivity(i);
}
});
b3.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent i=new Intent(Main_list.this,Facebook_main.class);
startActivity(i);
}
});
b4.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent i=new Intent(Main_list.this,Telegram_main.class);
startActivity(i);
}
});
}
#Override
public void onBackPressed() {
Intent i=new Intent(Intent.ACTION_MAIN);
i.addCategory(Intent.CATEGORY_HOME);
i.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(i);
finish();
System.exit(0);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main_list, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.about_id) {
Intent i=new Intent(this,about_Activity.class);
startActivity(i);
}
return super.onOptionsItemSelected(item);
}
#SuppressWarnings("StatementWithEmptyBody")
#Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_addgroup) {
Intent i=new Intent(Main_list.this,Usr_add.class);
startActivity(i);
} if (id == R.id.nav_refresh) {
Toast.makeText(this, "Content View Refreshed Successful",
Toast.LENGTH_SHORT).show();
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
}
activity_main_list.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start">
<include
layout="#layout/app_bar_main_list"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<android.support.design.widget.NavigationView
android:id="#+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:headerLayout="#layout/nav_header_main_list"
app:menu="#menu/activity_main_list_drawer" />
</android.support.v4.widget.DrawerLayout>
content_main_list.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context="com.digroof.whatslinkshare.Main_list"
tools:showIn="#layout/app_bar_main_list">
<Button
android:id="#+id/button9"
style="#style/Widget.AppCompat.Button.Colored"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/button10"
android:layout_alignParentBottom="true"
android:layout_alignStart="#+id/button10"
android:layout_marginBottom="163dp"
android:text="DISCORD"
tools:layout_editor_absoluteX="147dp"
tools:layout_editor_absoluteY="128dp" />
<Button
android:id="#+id/button10"
style="#style/Widget.AppCompat.Button.Colored"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_alignBottom="#+id/button11"
android:layout_centerHorizontal="true"
android:layout_marginBottom="60dp"
android:text="WHATSAPP"
tools:layout_editor_absoluteX="147dp"
tools:layout_editor_absoluteY="128dp" />
<Button
android:id="#+id/button11"
style="#style/Widget.AppCompat.Button.Colored"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_alignBottom="#+id/button12"
android:layout_alignLeft="#+id/button12"
android:layout_alignStart="#+id/button12"
android:layout_marginBottom="64dp"
android:text="FACEBOOK"
tools:layout_editor_absoluteX="147dp"
tools:layout_editor_absoluteY="128dp" />
<Button
android:id="#+id/button12"
style="#style/Widget.AppCompat.Button.Colored"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_above="#+id/button9"
android:layout_alignLeft="#+id/button9"
android:layout_alignStart="#+id/button9"
android:layout_marginBottom="18dp"
android:text="TELEGRAM"
tools:layout_editor_absoluteX="147dp"
tools:layout_editor_absoluteY="128dp" />
</RelativeLayout>
after lauching it on kitkat platform it showing below error
FATAL EXCEPTION: main
Process: com.digroof.whatslinkshare, PID: 26627
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.digroof.whatslinkshare/com.digroof.whatslinkshare.Main_list}: android.view.InflateException: Binary XML file line #16: Error inflating class android.support.design.widget.NavigationView
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2184)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233)
at android.app.ActivityThread.access$800(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5001)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.view.InflateException: Binary XML file line #16: Error inflating class android.support.design.widget.NavigationView
at android.view.LayoutInflater.createView(LayoutInflater.java:620)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:696)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:755)
at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:292)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)
at com.digroof.whatslinkshare.Main_list.onCreate(Main_list.java:32)
at android.app.Activity.performCreate(Activity.java:5231)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2148)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233) 
at android.app.ActivityThread.access$800(ActivityThread.java:135) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:136) 
at android.app.ActivityThread.main(ActivityThread.java:5001) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:515) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601) 
at dalvik.system.NativeStart.main(Native Method) 
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Constructor.constructNative(Native Method)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at android.view.LayoutInflater.createView(LayoutInflater.java:594)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:696) 
at android.view.LayoutInflater.rInflate(LayoutInflater.java:755) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:492) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:397) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:353) 
at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:292) 
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140) 
at com.digroof.whatslinkshare.Main_list.onCreate(Main_list.java:32) 
at android.app.Activity.performCreate(Activity.java:5231) 
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087) 
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2148) 
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233) 
at android.app.ActivityThread.access$800(ActivityThread.java:135) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:136) 
at android.app.ActivityThread.main(ActivityThread.java:5001) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:515) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601) 
at dalvik.system.NativeStart.main(Native Method) 
Caused by: android.view.InflateException: Binary XML file line #18: Error inflating class ImageView
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:713)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:755)
at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
at android.support.design.internal.NavigationMenuPresenter.inflateHeaderView(NavigationMenuPresenter.java:211)
at android.support.design.widget.NavigationView.inflateHeaderView(NavigationView.java:269)
at android.support.design.widget.NavigationView.<init>(NavigationView.java:178)
at android.support.design.widget.NavigationView.<init>(NavigationView.java:100)
at java.lang.reflect.Constructor.constructNative(Native Method) 
at java.lang.reflect.Constructor.newInstance(Constructor.java:423) 
at android.view.LayoutInflater.createView(LayoutInflater.java:594) 
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:696) 
at android.view.LayoutInflater.rInflate(LayoutInflater.java:755) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:492) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:397) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:353) 
at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:292) 
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140) 
at com.digroof.whatslinkshare.Main_list.onCreate(Main_list.java:32) 
at android.app.Activity.performCreate(Activity.java:5231) 
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087) 
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2148) 
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233) 
at android.app.ActivityThread.access$800(ActivityThread.java:135) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:136) 
at android.app.ActivityThread.main(ActivityThread.java:5001) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:515) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601) 
at dalvik.system.NativeStart.main(Native Method) 
Caused by: android.content.res.Resources$NotFoundException: Resource ID #0x7f0200ad
at android.content.res.Resources.getValue(Resources.java:1123)
at android.support.v7.widget.ResourcesWrapper.getValue(ResourcesWrapper.java:204)
at android.support.v7.widget.AppCompatDrawableManager.loadDrawableFromDelegates(AppCompatDrawableManager.java:332)
at android.support.v7.widget.AppCompatDrawableManager.getDrawable(AppCompatDrawableManager.java:197)
at android.support.v7.widget.AppCompatDrawableManager.getDrawable(AppCompatDrawableManager.java:190)
at android.support.v7.content.res.AppCompatResources.getDrawable(AppCompatResources.java:100)
at android.support.v7.widget.AppCompatImageHelper.loadFromAttributes(AppCompatImageHelper.java:54)
at android.support.v7.widget.AppCompatImageView.<init>(AppCompatImageView.java:66)
at android.support.v7.widget.AppCompatImageView.<init>(AppCompatImageView.java:56)
gradle info
android {
compileSdkVersion 25
buildToolsVersion "26.0.2"
defaultConfig {
applicationId "com.digroof.whatslinkshare"
minSdkVersion 16
targetSdkVersion 25
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
vectorDrawables.useSupportLibrary = true
}

If you run through the stack trace's causes you can see that it's failing to load the NavigationView.
Try reading the Causes of the stacktrace backwards to get a better idea of the reason.
1) Caused by: android.view.InflateException: Binary XML file line #18: Error inflating class ImageView.
2) Caused by: java.lang.reflect.InvocationTargetException
3) Caused by: android.view.InflateException: Binary XML file line #16: Error inflating class android.support.design.widget.NavigationView
This leads me to believe that within the NavigationView it is attempting to load an imageview that doesn't exist or has an incorrect ID.
I'd also assume that as it's happening during inflation it's to do with app:headerLayout="#layout/nav_header_main_list".
Check your nav_header_main_list resource for an imageview with an incorrect ID.

For remove error from Kitkat version you need to add following dependency into app level build.gradle.
compile 'com.android.support:design:23.1.1'
Please put same version like 23.1.1 with other android dependency.

Caused by: java.lang.reflect.InvocationTargetException [duplicate]

This question already has answers here:
How to solve java.lang.OutOfMemoryError trouble in Android
(7 answers)
Closed 6 years ago.
my activity is continuously crashing, this just shows only text on UI, please tell me what I am doing wrong.This is showing error in XML file but according to me the XML file is fine, I am not able to find the bug in XML file.
Here is my code
public class PlacedOrderConfirmation extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.place_order_confirmation);
TextView placed_successful_txt= (TextView)findViewById(R.id.placed_successful_txt);
Intent intent = getIntent();
String edit_order_id = intent.getStringExtra("EDIT_OR_PLACE") != null ? intent.getStringExtra("EDIT_OR_PLACE") : "";
if(edit_order_id!=null && edit_order_id.length()>0){
placed_successful_txt.setText("YOUR ORDER HAS BEEN\nUPDATED SUCCESSFULLY");
}
Button notification_icon = (Button) findViewById(R.id.notification_icon);
ImageView btnContinue = (ImageView) findViewById(R.id.cont);
notification_icon.getLayoutParams().height = (int) (Utility.getDeviceHeight(this) * .04);
notification_icon.getLayoutParams().width = (int) (Utility.getDeviceHeight(this) * .04);
btnContinue.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(PlacedOrderConfirmation.this, ContractorDashboard.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(intent);
finish();
}
});
}
}
the XML file
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/bg_summary"
android:orientation="vertical">
<RelativeLayout
android:id="#+id/header"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/colorAccent"
android:padding="10dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:text="#string/confirmation"
android:textColor="#color/white"
android:textSize="#dimen/medium_text" />
<Button
android:id="#+id/notification_icon"
android:layout_width="wrap_content"
android:visibility="invisible"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_marginRight="10dp"
android:layout_centerVertical="true"
android:background="#drawable/notification_icon" />
</RelativeLayout>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/congratulation"
android:textSize="42sp"
android:textStyle="bold"
android:textColor="#color/white"
android:layout_gravity="center_horizontal"
android:layout_marginTop="100dp"/>
<TextView
android:id="#+id/placed_successful_txt"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/orderplaced"
android:textSize="#dimen/text_large"
android:textStyle="bold"
android:layout_margin="20dp"
android:textColor="#color/green"
android:layout_gravity="center_horizontal"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/emailsent"
android:textSize="#dimen/text_small"
android:layout_marginTop="20dp"
android:textColor="#color/gray_base"
android:gravity="center_horizontal"
android:layout_gravity="center_horizontal"
/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:layout_marginTop="40dp"
android:text="#string/click"
android:textSize="#dimen/text_large"
android:layout_centerVertical="true"
android:textColor="#color/white"
/>
<ImageView
android:layout_width="70dp"
android:layout_height="35dp"
android:id="#+id/cont"
android:layout_marginTop="10dp"
android:background="#drawable/forward_arrow"
android:layout_gravity="center_horizontal"
/>
</LinearLayout>
This is the logcat
10-20 10:48:08.394 24918-24918/com.loadarmy E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.loadarmy, PID: 24918
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.loadarmy/com.loadarmy.contractor.PlacedOrderConfirmation}: android.view.InflateException: Binary XML file line #89: Error inflating class <unknown>
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2200)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2249)
at android.app.ActivityThread.access$800(ActivityThread.java:141)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1212)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5113)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:796)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:612)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.view.InflateException: Binary XML file line #89: Error inflating class <unknown>
at android.view.LayoutInflater.createView(LayoutInflater.java:623)
at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
at android.view.LayoutInflater.onCreateView(LayoutInflater.java:672)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:697)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:758)
at android.view.LayoutInflater.inflate(LayoutInflater.java:495)
at android.view.LayoutInflater.inflate(LayoutInflater.java:400)
at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:290)
at android.app.Activity.setContentView(Activity.java:1940)
at com.loadarmy.contractor.PlacedOrderConfirmation.onCreate(PlacedOrderConfirmation.java:19)
at android.app.Activity.performCreate(Activity.java:5242)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2164)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2249) 
at android.app.ActivityThread.access$800(ActivityThread.java:141) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1212) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:136) 
at android.app.ActivityThread.main(ActivityThread.java:5113) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:515) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:796) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:612) 
at dalvik.system.NativeStart.main(Native Method) 
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Constructor.constructNative(Native Method)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at android.view.LayoutInflater.createView(LayoutInflater.java:597)
at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56) 
at android.view.LayoutInflater.onCreateView(LayoutInflater.java:672) 
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:697) 
at android.view.LayoutInflater.rInflate(LayoutInflater.java:758) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:495) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:400) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:353) 
at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:290) 
at android.app.Activity.setContentView(Activity.java:1940) 
at com.loadarmy.contractor.PlacedOrderConfirmation.onCreate(PlacedOrderConfirmation.java:19) 
at android.app.Activity.performCreate(Activity.java:5242) 
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087) 
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2164) 
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2249) 
at android.app.ActivityThread.access$800(ActivityThread.java:141) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1212) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:136) 
at android.app.ActivityThread.main(ActivityThread.java:5113) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:515) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:796) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:612) 
at dalvik.system.NativeStart.main(Native Method) 
Caused by: java.lang.OutOfMemoryError
at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:601)
at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:434)
at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:840)
at android.content.res.Resources.createFromResourceStream(Resources.java:2503)
at android.content.res.Resources.loadDrawable(Resources.java:2155)
at android.content.res.MiuiResources.loadDrawable(MiuiResources.java:393)
at android.content.res.Resources.loadDrawable(Resources.java:2062)
at android.content.res.TypedArray.getDrawable(TypedArray.java:602)
at android.view.View.<init>(View.java:3558)
at android.widget.ImageView.<init>(ImageView.java:123)
at android.widget.ImageView.<init>(ImageView.java:119)
at java.lang.reflect.Constructor.constructNative(Native Method) 
at java.lang.reflect.Constructor.newInstance(Constructor.java:423) 
at android.view.LayoutInflater.createView(LayoutInflater.java:597) 
at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56) 
at android.view.LayoutInflater.onCreateView(LayoutInflater.java:672) 
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:697) 
at android.view.LayoutInflater.rInflate(LayoutInflater.java:758) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:495) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:400) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:353) 
at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:290) 
at android.app.Activity.setContentView(Activity.java:1940) 
at com.loadarmy.contractor.PlacedOrderConfirmation.onCreate(PlacedOrderConfirmation.java:19) 
at android.app.Activity.performCreate(Activity.java:5242) 
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087) 
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2164) 
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2249) 
at android.app.ActivityThread.access$800(ActivityThread.java:141) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1212) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:136) 
at android.app.ActivityThread.main(ActivityThread.java:5113) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:515) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:796) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:612) 
at dalvik.system.NativeStart.main(Native Method) 

You set background images to your LinearLayout and Button of your xml. one of those images are giving OutOfMemoryError try reducing size of your image or change it.

You are getting OutOfMemoryError
Thrown when the Java Virtual Machine cannot allocate an object because
it is out of memory, and no more memory could be made available by the
garbage collector.
This error showing when the application attempts to add more data into the heap space area, but there is not enough room for it.
Reduce Image Resolution at first and set android:largeHeap="true" in your manifest .

Logcat error: IllegalArgumentException

When I run my app, I get the logcat error as follows:
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.enxin.crystallise, PID: 14868
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.enxin.crystallise/com.example.enxin.crystallise.Help}: android.view.InflateException: Binary XML file line #32: Error inflating class fragment
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2184)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233)
at android.app.ActivityThread.access$800(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5001)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.view.InflateException: Binary XML file line #32: Error inflating class fragment
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:713)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:755)
at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:280)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)
at com.example.enxin.crystallise.Help.onCreate(Help.java:11)
at android.app.Activity.performCreate(Activity.java:5231)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2148)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233) 
at android.app.ActivityThread.access$800(ActivityThread.java:135) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:136) 
at android.app.ActivityThread.main(ActivityThread.java:5001) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:515) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601) 
at dalvik.system.NativeStart.main(Native Method) 
Caused by: java.lang.IllegalArgumentException: Binary XML file line #32: Must specify unique android:id, android:tag, or have a parent with an id for com.example.enxin.crystallise.HelpFragment
at android.support.v4.app.FragmentManagerImpl.onCreateView(FragmentManager.java:2260)
at android.support.v4.app.FragmentController.onCreateView(FragmentController.java:120)
at android.support.v4.app.FragmentActivity.dispatchFragmentsOnCreateView(FragmentActivity.java:356)
at android.support.v4.app.BaseFragmentActivityHoneycomb.onCreateView(BaseFragmentActivityHoneycomb.java:31)
at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:79)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:689)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:755) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:492) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:397) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:353) 
at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:280) 
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140) 
at com.example.enxin.crystallise.Help.onCreate(Help.java:11) 
at android.app.Activity.performCreate(Activity.java:5231) 
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087) 
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2148) 
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233) 
at android.app.ActivityThread.access$800(ActivityThread.java:135) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:136) 
at android.app.ActivityThread.main(ActivityThread.java:5001) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:515)
Here's the code where my error lies in:
public class Help extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_help);
}
}
activity_fragment.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context="com.example.enxin.crystallise.Help">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="#string/title_help"
android:id="#+id/title_help"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="#string/subtitle_help"
android:id="#+id/subtitle_help"
android:layout_below="#+id/title_help"
android:layout_centerHorizontal="true"
android:layout_marginTop="12dp" />
<fragment
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:name="com.example.enxin.crystallise.HelpFragment"
android:layout_below="#+id/subtitle_help"
android:layout_centerHorizontal="true"
android:layout_marginTop="36dp"
tools:layout="#layout/fragment_help" />
</RelativeLayout>
fragment_helo.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<!-- TODO: Update blank fragment layout -->
<TextView
android:id="#+id/help1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/help1"
android:textAppearance="?android:attr/textAppearanceLarge"
android:layout_gravity="center_horizontal|top"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true" />
<TextView
android:id="#+id/help2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/help2"
android:textAppearance="?android:attr/textAppearanceMedium"
android:layout_below="#+id/help1"
android:layout_marginTop="10dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/help3"
android:textAppearance="?android:attr/textAppearanceMedium"
android:layout_below="#+id/help2"
android:layout_marginTop="10dp" />
HelpFragment.java
package com.example.enxin.crystallise;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.example.enxin.crystallise.R;
public class HelpFragment extends Fragment {
public HelpFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_help, container, false);
}
}
When I request to see the error, the line setContentView is highlighted. I'm new to Android Studio so please help!

The error is not in your Java class, it's located in the XML file where you have declared the layout for the View.
It must have problem with id or tag, be sure to check all the attributes are as required per the standards.
And also, post the code of that file.(XML file containing the fragment)

I think the problem in fragment_help.xml, You forgot to close RelativeLayout tag.
Just put </RelativeLayout> end of the layout file.
Hope it will help you :)

Android Facebook integration login exception in setContentView

This is my MainActivity. The app is giving me a null pointer Exception at set content view and the app crashes please help.
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;
import com.facebook.CallbackManager;
import com.facebook.FacebookCallback;
import com.facebook.FacebookException;
import com.facebook.FacebookSdk;
import com.facebook.login.LoginResult;
import com.facebook.login.widget.LoginButton;
public class MainActivity extends AppCompatActivity {
private LoginButton loginButton;
private TextView info;
private CallbackManager callbackManager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);//here I get a nullpointerexception
FacebookSdk.sdkInitialize(getApplicationContext());
callbackManager = CallbackManager.Factory.create();
info = (TextView) findViewById(R.id.info);
loginButton = (LoginButton) findViewById(R.id.login_button);
loginButton.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
#Override
public void onSuccess(LoginResult loginResult) {
info.setText(
"User ID: "
+ loginResult.getAccessToken().getUserId()
+ "\n" +
"Auth Token: "
+ loginResult.getAccessToken().getToken()
);
}
#Override
public void onCancel() {
}
#Override
public void onError(FacebookException error) {
info.setText("Login attempt failed.");
}
});
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
callbackManager.onActivityResult(requestCode, resultCode, data);
}}
Above is my MainActivity. The app is giving me a null pointer Exception at set contentView The error is not resolving I have tried various ways
06-07 22:31:49.398 1020-1020/? E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.saranshagarwal.facebookintegration1, PID: 1020
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.saranshagarwal.facebookintegration1/com.example.saranshagarwal.facebookintegration1.MainActivity}: android.view.InflateException: Binary XML file line #16: Error inflating class com.facebook.login.widget.LoginButton
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
at android.app.ActivityThread.access$800(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5021)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:827)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:643)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.view.InflateException: Binary XML file line #16: Error inflating class com.facebook.login.widget.LoginButton
at android.view.LayoutInflater.createView(LayoutInflater.java:620)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:696)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:755)
at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:280)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)
at com.example.saranshagarwal.facebookintegration1.MainActivity.onCreate(MainActivity.java:23)
at android.app.Activity.performCreate(Activity.java:5318)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1090)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245) 
at android.app.ActivityThread.access$800(ActivityThread.java:135) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:136) 
at android.app.ActivityThread.main(ActivityThread.java:5021) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:515) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:827) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:643) 
at dalvik.system.NativeStart.main(Native Method) 
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Constructor.constructNative(Native Method)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at android.view.LayoutInflater.createView(LayoutInflater.java:594)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:696) 
at android.view.LayoutInflater.rInflate(LayoutInflater.java:755) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:492) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:397) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:353) 
at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:280) 
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140) 
at com.example.saranshagarwal.facebookintegration1.MainActivity.onCreate(MainActivity.java:23) 
at android.app.Activity.performCreate(Activity.java:5318) 
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1090) 
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159) 
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245) 
at android.app.ActivityThread.access$800(ActivityThread.java:135) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:136) 
at android.app.ActivityThread.main(ActivityThread.java:5021) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:515) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:827) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:643) 
at dalvik.system.NativeStart.main(Native Method) 
Caused by: The SDK has not been initialized, make sure to call FacebookSdk.sdkInitialize() first.
at com.facebook.internal.Validate.sdkInitialized(Validate.java:145)
at com.facebook.AccessTokenTracker.<init>(AccessTokenTracker.java:55)
at com.facebook.login.widget.LoginButton$2.<init>(LoginButton.java:563)
at com.facebook.login.widget.LoginButton.configureButton(LoginButton.java:563)
at com.facebook.FacebookButtonBase.<init>(FacebookButtonBase.java:69)
at com.facebook.login.widget.LoginButton.<init>(LoginButton.java:201)
at java.lang.reflect.Constructor.constructNative(Native Method) 
at java.lang.reflect.Constructor.newInstance(Constructor.java:423) 
at android.view.LayoutInflater.createView(LayoutInflater.java:594) 
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:696) 
at android.view.LayoutInflater.rInflate(LayoutInflater.java:755) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:492) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:397) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:353) 
at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:280) 
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140) 
at com.example.saranshagarwal.facebookintegration1.MainActivity.onCreate(MainActivity.java:23) 
at android.app.Activity.performCreate(Activity.java:5318) 
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1090) 
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159) 
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245) 
at android.app.ActivityThread.access$800(ActivityThread.java:135) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:136) 
at android.app.ActivityThread.main(ActivityThread.java:5021) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:515) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:827) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:643) 
at dalvik.system.NativeStart.main(Native Method) 
This is my Log cat
<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.saranshagarwal.facebookintegration1">
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<meta-data
android:name="com.facebook.sdk.ApplicationId"
android:value="#string/app_id" />
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.facebook.FacebookActivity"
android:configChanges="keyboard|keyboardHidden|screenLayout|screenSize|orientation"
android:label="#string/app_name"
android:theme="#android:style/Theme.Translucent.NoTitleBar" />
</application>
This is my Manifest
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent" android:layout_height="match_parent"
android:padding="16dp"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/info"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:textSize="18sp"
/>
<com.facebook.login.widget.LoginButton
android:id="#+id/login_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
/>
This is the activity_main.xml

Add this line just above setContentView not after
FacebookSdk.sdkInitialize(getApplicationContext());
As you are using facebook sdk login button in activity_main xml and this xml you do set in setContentView and FacebookSdk is not initialize yet. So this gives you a null pointer exception.
Hope this will help you.