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My app freezes crashes when it's supposed to go to the next activity

I don't know why the app crashes whenever it's supposed to go to the next Activity. I made a practice app that works as it should when using the same format. I uploaded the files to gist.github.
The error is
1216-1216/com.example.chiozokamalu.newfreshstart E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.ArrayIndexOutOfBoundsException
at com.example.chiozokamalu.newfreshstart.MainActivity.onClick(MainActivity.java:164)
at android.view.View.performClick(View.java:2485)
at android.view.View$PerformClick.run(View.java:9080)
at android.os.Handler.handleCallback(Handler.java:587)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:130)
at android.app.ActivityThread.main(ActivityThread.java:3683)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
at dalvik.system.NativeStart.main(Native Method)
On line 164 of MainActivity.java:
questionView.setText(questions[questionIndex]); // set the text to the next question
EDIT: After Varun helped me, I get a new error which is
1307-1307/com.example.chiozokamalu.newfreshstart E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.chiozokamalu.newfreshstart/com.example.chiozokamalu.newfreshstart.Results1}: java.lang.NullPointerException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
at android.app.ActivityThread.access$1500(ActivityThread.java:117)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:130)
at android.app.ActivityThread.main(ActivityThread.java:3683)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at com.example.chiozokamalu.newfreshstart.Results1.onCreate(Results1.java:58)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
            at android.app.ActivityThread.access$1500(ActivityThread.java:117)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:130)
            at android.app.ActivityThread.main(ActivityThread.java:3683)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:507)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
            at dalvik.system.NativeStart.main(Native Method)

The questions array at line no. 164 is going out of bound that means questionIndex is greater than the total length of the questions array. So you should add a check on the length before extracting value from the array.
You have added the check but after that you incremented the value so either you modify the if condition to if (questionIndex < questions.length -1)
or modify the questionIndex variable before the if condition
You are getting problem because you haven't initiated resultView9 that is why it is null and giving nullpointer, just initiatlise it as you done with other and everything is fine. You have initialised the resultView8 twice just add resultview9 over there

App crashes by Resource$NotFoundException using ActionBarSherlock

My application crashes on start up with this log:
09-25 07:12:27.721: W/ResourceType(361): Failure getting entry for 0x7f030016 (t=2 e=22) in package 0: 0xffffffb5
09-25 07:12:27.721: D/AndroidRuntime(361): Shutting down VM
09-25 07:12:27.721: W/dalvikvm(361): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
09-25 07:12:27.741: E/AndroidRuntime(361): FATAL EXCEPTION: main
09-25 07:12:27.741: E/AndroidRuntime(361): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.villaparvaneh/com.villaparvaneh.VillaListActivity}: android.content.res.Resources$NotFoundException: Resource ID #0x7f030016
09-25 07:12:27.741: E/AndroidRuntime(361): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
09-25 07:12:27.741: E/AndroidRuntime(361): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
09-25 07:12:27.741: E/AndroidRuntime(361): at android.app.ActivityThread.access$2300(ActivityThread.java:125)
09-25 07:12:27.741: E/AndroidRuntime(361): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
09-25 07:12:27.741: E/AndroidRuntime(361): at android.os.Handler.dispatchMessage(Handler.java:99)
09-25 07:12:27.741: E/AndroidRuntime(361): at android.os.Looper.loop(Looper.java:123)
09-25 07:12:27.741: E/AndroidRuntime(361): at android.app.ActivityThread.main(ActivityThread.java:4627)
09-25 07:12:27.741: E/AndroidRuntime(361): at java.lang.reflect.Method.invokeNative(Native Method)
09-25 07:12:27.741: E/AndroidRuntime(361): at java.lang.reflect.Method.invoke(Method.java:521)
09-25 07:12:27.741: E/AndroidRuntime(361): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
09-25 07:12:27.741: E/AndroidRuntime(361): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
09-25 07:12:27.741: E/AndroidRuntime(361): at dalvik.system.NativeStart.main(Native Method)
09-25 07:12:27.741: E/AndroidRuntime(361): Caused by: android.content.res.Resources$NotFoundException: Resource ID #0x7f030016
09-25 07:12:27.741: E/AndroidRuntime(361): at android.content.res.Resources.getValue(Resources.java:892)
09-25 07:12:27.741: E/AndroidRuntime(361): at android.content.res.Resources.loadXmlResourceParser(Resources.java:1869)
09-25 07:12:27.741: E/AndroidRuntime(361): at android.content.res.Resources.getLayout(Resources.java:731)
09-25 07:12:27.741: E/AndroidRuntime(361): at android.view.LayoutInflater.inflate(LayoutInflater.java:318)
09-25 07:12:27.741: E/AndroidRuntime(361): at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
09-25 07:12:27.741: E/AndroidRuntime(361): at com.actionbarsherlock.internal.ActionBarSherlockCompat.setContentView(ActionBarSherlockCompat.java:840)
09-25 07:12:27.741: E/AndroidRuntime(361): at com.actionbarsherlock.app.SherlockFragmentActivity.setContentView(SherlockFragmentActivity.java:261)
09-25 07:12:27.741: E/AndroidRuntime(361): at com.villaparvaneh.VillaListActivity.onCreate(VillaListActivity.java:47)
09-25 07:12:27.741: E/AndroidRuntime(361): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
09-25 07:12:27.741: E/AndroidRuntime(361): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
09-25 07:12:27.741: E/AndroidRuntime(361): ... 11 more
At first I used eclipse wizard for creating a Master/Detail activity and my minsdk was set to 11. but then I used ActionBarSherlock and changed my activity code for that nothing more! At first time lunch there was an error for not setting theme to Theme.Sherlock.Light. after I changed the style file the above error comes up!
I googled for a day and read some similar issues like this and this, but it seems that my problem is not related to them. I searched for resource 0x7f030016 in R.java file and find out that it is R.attr.actionModeCloseDrawable and the exception is thrown in the setContentView(int layoutResId) of ActionBarSherlockCompat.java or ActionBarSherlockNative.java at the following line:
mActivity.getLayoutInflater().inflate(layoutResId, mContentParent);
where layoutResId is R.attr.actionModeCloseDrawable and mContentParent is an instance of com.actionbarsherlock.internal.nineoldandroids.widget.NineFrameLayout. I spend a whole day on this and checked every related link on google, but I cant figure out what's happening. I use Android 4.3 for building the app and support library revision 18. I don't think my code is useful here because error is not happened in my code. maybe some of xml files in res folder is needed, just tell which one to add it.
Any idea?
Thanks

Android Application crashes because of intent

I have 2 classes: Main and Study. when I press the "study" button on the Main's layout it should go to the Study class but the application crashes instead.
this is the Main class Code:
package com.example.geograpp;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
public class Main extends Activity implements OnClickListener {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
View studyButton=this.findViewById(R.id.study_button);
studyButton.setOnClickListener(this);
}
#Override
public void onClick(View v) {
switch (v.getId()){
case R.id.study_button:
Intent studyIntent = new Intent(this, Study.class);
startActivity(studyIntent);
break;
}
}
}
this is the Main's layout:
<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=".Main"
android:background="#drawable/mainmenu_background">
<Button
android:id="#+id/study_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="94dp"
android:text="Study"
android:textColor="#color/white"
android:textSize="22sp"
android:background="#color/black"/>
<Button
android:id="#+id/about_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/game_button"
android:layout_below="#+id/game_button"
android:layout_marginTop="40dp"
android:background="#color/black"
android:text="About"
android:textColor="#color/white"
android:textSize="22sp" />
<Button
android:id="#+id/game_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/study_button"
android:layout_below="#+id/study_button"
android:layout_marginTop="38dp"
android:background="#color/black"
android:text="Game"
android:textColor="#color/white"
android:textSize="22sp" />
<Button
android:id="#+id/exit_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/about_button"
android:layout_alignRight="#+id/study_button"
android:layout_below="#+id/about_button"
android:layout_marginTop="42dp"
android:background="#color/black"
android:text="Exit"
android:textColor="#color/white"
android:textSize="22sp" />
</RelativeLayout>
This is the Study class code:
package com.example.geograpp;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
public class Study extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_study);
}
}
This is the Study's layout:
<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=".Study"
android:background="#drawable/study_background">
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="106dp"
android:text="Choose a Continent"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textColor="#color/white" />
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:src="#drawable/worldmap_clickable" />
</RelativeLayout>
This is the manifast
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.geograpp"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="10"
android:targetSdkVersion="10" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.example.geograpp.Main"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.example.geograpp.Study"
android:label="#string/title_activity_study" >
</activity>
</application>
</manifest>
The log cat after the crush:
09-04 22:54:17.176: D/dalvikvm(334): GC_EXTERNAL_ALLOC freed 49K, 53% free 2551K/5379K, external 1625K/2137K, paused 135ms
09-04 22:54:45.306: D/dalvikvm(334): GC_EXTERNAL_ALLOC freed 12K, 53% free 2577K/5379K, external 23321K/25369K, paused 62ms
09-04 22:54:45.396: E/dalvikvm-heap(334): 22216740-byte external allocation too large for this process.
09-04 22:54:45.496: E/GraphicsJNI(334): VM won't let us allocate 22216740 bytes
09-04 22:54:45.506: D/dalvikvm(334): GC_FOR_MALLOC freed <1K, 53% free 2577K/5379K, external 23321K/25369K, paused 35ms
09-04 22:54:45.506: D/skia(334): --- decoder->decode returned false
09-04 22:54:45.506: D/AndroidRuntime(334): Shutting down VM
09-04 22:54:45.506: W/dalvikvm(334): threadid=1: thread exiting with uncaught exception (group=0x40015560)
09-04 22:54:45.538: E/AndroidRuntime(334): FATAL EXCEPTION: main
09-04 22:54:45.538: E/AndroidRuntime(334): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.geograpp/com.example.geograpp.Study}: android.view.InflateException: Binary XML file line #1: Error inflating class <unknown>
09-04 22:54:45.538: E/AndroidRuntime(334): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.app.ActivityThread.access$1500(ActivityThread.java:117)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.os.Handler.dispatchMessage(Handler.java:99)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.os.Looper.loop(Looper.java:123)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.app.ActivityThread.main(ActivityThread.java:3683)
09-04 22:54:45.538: E/AndroidRuntime(334): at java.lang.reflect.Method.invokeNative(Native Method)
09-04 22:54:45.538: E/AndroidRuntime(334): at java.lang.reflect.Method.invoke(Method.java:507)
09-04 22:54:45.538: E/AndroidRuntime(334): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
09-04 22:54:45.538: E/AndroidRuntime(334): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
09-04 22:54:45.538: E/AndroidRuntime(334): at dalvik.system.NativeStart.main(Native Method)
09-04 22:54:45.538: E/AndroidRuntime(334): Caused by: android.view.InflateException: Binary XML file line #1: Error inflating class <unknown>
09-04 22:54:45.538: E/AndroidRuntime(334): at android.view.LayoutInflater.createView(LayoutInflater.java:518)
09-04 22:54:45.538: E/AndroidRuntime(334): at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:568)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.view.LayoutInflater.inflate(LayoutInflater.java:386)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
09-04 22:54:45.538: E/AndroidRuntime(334): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:207)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.app.Activity.setContentView(Activity.java:1657)
09-04 22:54:45.538: E/AndroidRuntime(334): at com.example.geograpp.Study.onCreate(Study.java:12)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
09-04 22:54:45.538: E/AndroidRuntime(334): ... 11 more
09-04 22:54:45.538: E/AndroidRuntime(334): Caused by: java.lang.reflect.InvocationTargetException
09-04 22:54:45.538: E/AndroidRuntime(334): at java.lang.reflect.Constructor.constructNative(Native Method)
09-04 22:54:45.538: E/AndroidRuntime(334): at java.lang.reflect.Constructor.newInstance(Constructor.java:415)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.view.LayoutInflater.createView(LayoutInflater.java:505)
09-04 22:54:45.538: E/AndroidRuntime(334): ... 21 more
09-04 22:54:45.538: E/AndroidRuntime(334): Caused by: java.lang.OutOfMemoryError: bitmap size exceeds VM budget
09-04 22:54:45.538: E/AndroidRuntime(334): at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:460)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:336)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:697)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.content.res.Resources.loadDrawable(Resources.java:1709)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.content.res.TypedArray.getDrawable(TypedArray.java:601)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.view.View.<init>(View.java:1951)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.view.View.<init>(View.java:1899)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.view.ViewGroup.<init>(ViewGroup.java:286)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.widget.RelativeLayout.<init>(RelativeLayout.java:173)
09-04 22:54:45.538: E/AndroidRuntime(334): ... 24 more
09-04 22:55:01.926: I/Process(334): Sending signal. PID: 334 SIG: 9

Your application is crashing because your apps allowed memory limit has been exceeded. The only way to resolve this problem is to reduce the memory footprint of your app. My guess is your entire issue is related to the background set in your study layout.
android:background="#drawable/study_background"
Images are almost always the cause of OutOfMemory errors in my experience. Take a look at the resolution of this image and try to scale it down to a more appropriate size for mobile. One way to test if this is the issue is to remove the background line altogether and run the app. If you don't see any errors or the error you do see isn't the same you know the image is causing your memory problems.
To explain how I came to that conclusion take a deeper look at the last caused by line in your stack trace:
09-04 22:54:45.538: E/AndroidRuntime(334): Caused by: java.lang.OutOfMemoryError: bitmap size exceeds VM budget
09-04 22:54:45.538: E/AndroidRuntime(334): at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:460)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:336)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:697)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.content.res.Resources.loadDrawable(Resources.java:1709)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.content.res.TypedArray.getDrawable(TypedArray.java:601)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.view.View.<init>(View.java:1951)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.view.View.<init>(View.java:1899)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.view.ViewGroup.<init>(ViewGroup.java:286)
09-04 22:54:45.538: E/AndroidRuntime(334): at android.widget.RelativeLayout.<init>(RelativeLayout.java:173)
If you look its during a constructor call to a RelativeLayout and is running out of memory while it is trying to decode a bitmap. Higher up in the stack trace you see it causes an error inflating xml. This means that the problem occurred when the Android system was trying to turn your xml into java objects and draw this on screen. You explained you were seeing this problem when your code was trying to move to the study activity which would indicate that the issue lies somewhere in the xml for study activity. Your study activity xml only has a single RelativeLayout with a background set on it indicating this is where the problem lies.
Finally I'd like to point out you also have a bitmap set on the image view which could also need to be sized more appropriately for mobile.
android:src="#drawable/worldmap_clickable"

modbus android application eclipse

I am new at android. I am trying to run java code program of modbusdroid in eclipse
i did not change any code only downloaded latest version seroUtils.jar and added to project because it was missing. error log is attached please help me
when i run it in eclipse
source - https://github.com/bigcat/ModbusDroid
09-25 17:22:17.806: E/dalvikvm(813): Could not find class 'com.bencatlin.modbusdroid.OldVersion.MbDroidMsgExceptionHandler', referenced from method com.bencatlin.modbusdroid.OldVersion.ModbusDroid.onCreate
09-25 17:22:19.117: E/dalvikvm(813): Could not find class 'com.serotonin.util.queue.ByteQueue', referenced from method com.serotonin.modbus4j.base.ModbusUtils.calculateCRC
09-25 17:22:20.277: E/dalvikvm(813): Could not find class 'com.serotonin.messaging.StreamTransport', referenced from method com.serotonin.modbus4j.ip.tcp.TcpMaster.openConnection
09-25 17:22:20.498: E/dalvikvm(813): Could not find class 'com.serotonin.modbus4j.ip.encap.EncapMessageParser', referenced from method com.serotonin.modbus4j.ip.tcp.TcpMaster.init
09-25 17:22:20.667: E/dalvikvm(813): Could not find class 'com.serotonin.modbus4j.ip.xa.XaMessageParser', referenced from method com.serotonin.modbus4j.ip.tcp.TcpMaster.init
09-25 17:22:20.807: E/dalvikvm(813): Could not find class 'com.serotonin.modbus4j.ip.encap.EncapMessageRequest', referenced from method com.serotonin.modbus4j.ip.tcp.TcpMaster.send
09-25 17:22:20.930: E/dalvikvm(813): Could not find class 'com.serotonin.modbus4j.ip.xa.XaMessageRequest', referenced from method com.serotonin.modbus4j.ip.tcp.TcpMaster.send
09-25 17:22:21.437: E/dalvikvm(813): Could not find class 'com.serotonin.messaging.MessageControl', referenced from method com.serotonin.modbus4j.ModbusMaster.getMessageControl
09-25 17:22:21.797: E/dalvikvm(813): Could not find class 'com.serotonin.messaging.DefaultMessagingExceptionHandler', referenced from method com.serotonin.modbus4j.Modbus.<init>
09-25 17:22:22.002: E/dalvikvm(813): Could not find class 'com.serotonin.messaging.DefaultMessagingExceptionHandler', referenced from method com.serotonin.modbus4j.Modbus.setExceptionHandler
09-25 17:22:22.277: E/AndroidRuntime(813): FATAL EXCEPTION: main
09-25 17:22:22.277: E/AndroidRuntime(813): java.lang.NoClassDefFoundError: com.serotonin.messaging.DefaultMessagingExceptionHandler
09-25 17:22:22.277: E/AndroidRuntime(813): at com.serotonin.modbus4j.Modbus.<init>(Modbus.java:34)
09-25 17:22:22.277: E/AndroidRuntime(813): at com.serotonin.modbus4j.ModbusMaster.<init>(ModbusMaster.java:55)
09-25 17:22:22.277: E/AndroidRuntime(813): at com.serotonin.modbus4j.ip.tcp.TcpMaster.<init>(TcpMaster.java:55)
09-25 17:22:22.277: E/AndroidRuntime(813): at com.bencatlin.modbusdroid.OldVersion.ModbusTCPMaster.<init>(ModbusTCPMaster.java:23)
09-25 17:22:22.277: E/AndroidRuntime(813): at com.bencatlin.modbusdroid.OldVersion.ModbusTCPFactory.createModbusTCPMaster(ModbusTCPFactory.java:12)
09-25 17:22:22.277: E/AndroidRuntime(813): at com.bencatlin.modbusdroid.OldVersion.ModbusDroid.onCreate(ModbusDroid.java:426)
09-25 17:22:22.277: E/AndroidRuntime(813): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
09-25 17:22:22.277: E/AndroidRuntime(813): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
09-25 17:22:22.277: E/AndroidRuntime(813): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
09-25 17:22:22.277: E/AndroidRuntime(813): at android.app.ActivityThread.access$2300(ActivityThread.java:125)
09-25 17:22:22.277: E/AndroidRuntime(813): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
09-25 17:22:22.277: E/AndroidRuntime(813): at android.os.Handler.dispatchMessage(Handler.java:99)
09-25 17:22:22.277: E/AndroidRuntime(813): at android.os.Looper.loop(Looper.java:123)
09-25 17:22:22.277: E/AndroidRuntime(813): at android.app.ActivityThread.main(ActivityThread.java:4627)
09-25 17:22:22.277: E/AndroidRuntime(813): at java.lang.reflect.Method.invokeNative(Native Method)
09-25 17:22:22.277: E/AndroidRuntime(813): at java.lang.reflect.Method.invoke(Method.java:521)
09-25 17:22:22.277: E/AndroidRuntime(813): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
09-25 17:22:22.277: E/AndroidRuntime(813): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
09-25 17:22:22.277: E/AndroidRuntime(813): at dalvik.system.NativeStart.main(Native Method)

Display.getRotation was added in Api level 8 (Froyo 2.2 ). I guess you are using a older device or emulator. Create a new AVD with api level >= 8

I had the same problem, I solved putting a new seroutils.jar into the 'libraries' tab into 'java build path' and then I've checked the jar into the 'order and export' tab.
It solves the problem permanently.

Android OutOfMemory within different devices ?

I have an app that deals with images, it works fine with some devices ex. HTC ONE X, and others dont ex. GALAXY NOTE, the list is big IDK the problem exatcly cuz it works in some, and it dont in others. also it doesnt work on the emulator the default one but a small one it does work
this is the logcat I get
08-15 18:30:39.070: I/dalvikvm-heap(334): Clamp target GC heap from 25.723MB to 24.000MB
08-15 18:30:39.090: D/dalvikvm(334): GC_FOR_MALLOC freed <1K, 51% free 2672K/5379K, external 19015K/19657K, paused 38ms
08-15 18:30:39.370: D/dalvikvm(334): GC_EXTERNAL_ALLOC freed <1K, 51% free 2672K/5379K, external 19015K/19657K, paused 45ms
08-15 18:30:39.400: E/dalvikvm-heap(334): 810000-byte external allocation too large for this process.
08-15 18:30:39.510: I/dalvikvm-heap(334): Clamp target GC heap from 25.724MB to 24.000MB
08-15 18:30:39.510: E/GraphicsJNI(334): VM won't let us allocate 810000 bytes
08-15 18:30:39.510: D/dalvikvm(334): GC_FOR_MALLOC freed 0K, 51% free 2672K/5379K, external 19015K/19657K, paused 36ms
08-15 18:30:39.532: D/AndroidRuntime(334): Shutting down VM
08-15 18:30:39.532: W/dalvikvm(334): threadid=1: thread exiting with uncaught exception (group=0x40015560)
08-15 18:30:39.600: E/AndroidRuntime(334): FATAL EXCEPTION: main
08-15 18:30:39.600: E/AndroidRuntime(334): java.lang.RuntimeException: Unable to start activity ComponentInfo{app.com.android.editor/app.com.android.editor.Option}: android.view.InflateException: Binary XML file line #317: Error inflating class <unknown>
08-15 18:30:39.600: E/AndroidRuntime(334): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.app.ActivityThread.access$1500(ActivityThread.java:117)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.os.Handler.dispatchMessage(Handler.java:99)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.os.Looper.loop(Looper.java:123)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.app.ActivityThread.main(ActivityThread.java:3683)
08-15 18:30:39.600: E/AndroidRuntime(334): at java.lang.reflect.Method.invokeNative(Native Method)
08-15 18:30:39.600: E/AndroidRuntime(334): at java.lang.reflect.Method.invoke(Method.java:507)
08-15 18:30:39.600: E/AndroidRuntime(334): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
08-15 18:30:39.600: E/AndroidRuntime(334): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
08-15 18:30:39.600: E/AndroidRuntime(334): at dalvik.system.NativeStart.main(Native Method)
08-15 18:30:39.600: E/AndroidRuntime(334): Caused by: android.view.InflateException: Binary XML file line #317: Error inflating class <unknown>
08-15 18:30:39.600: E/AndroidRuntime(334): at android.view.LayoutInflater.createView(LayoutInflater.java:518)
08-15 18:30:39.600: E/AndroidRuntime(334): at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:568)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.view.LayoutInflater.rInflate(LayoutInflater.java:623)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.view.LayoutInflater.rInflate(LayoutInflater.java:626)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.view.LayoutInflater.rInflate(LayoutInflater.java:626)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.view.LayoutInflater.rInflate(LayoutInflater.java:626)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.view.LayoutInflater.inflate(LayoutInflater.java:408)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
08-15 18:30:39.600: E/AndroidRuntime(334): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:207)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.app.Activity.setContentView(Activity.java:1657)
08-15 18:30:39.600: E/AndroidRuntime(334): at app.com.android.editor.Option.onCreate(Option.java:40)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
08-15 18:30:39.600: E/AndroidRuntime(334): ... 11 more
08-15 18:30:39.600: E/AndroidRuntime(334): Caused by: java.lang.reflect.InvocationTargetException
08-15 18:30:39.600: E/AndroidRuntime(334): at java.lang.reflect.Constructor.constructNative(Native Method)
08-15 18:30:39.600: E/AndroidRuntime(334): at java.lang.reflect.Constructor.newInstance(Constructor.java:415)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.view.LayoutInflater.createView(LayoutInflater.java:505)
08-15 18:30:39.600: E/AndroidRuntime(334): ... 25 more
08-15 18:30:39.600: E/AndroidRuntime(334): Caused by: java.lang.OutOfMemoryError: bitmap size exceeds VM budget
08-15 18:30:39.600: E/AndroidRuntime(334): at android.graphics.Bitmap.nativeCreate(Native Method)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.graphics.Bitmap.createBitmap(Bitmap.java:477)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.graphics.Bitmap.createBitmap(Bitmap.java:444)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.graphics.Bitmap.createScaledBitmap(Bitmap.java:349)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.graphics.BitmapFactory.finishDecode(BitmapFactory.java:498)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:473)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:336)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:697)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.content.res.Resources.loadDrawable(Resources.java:1709)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.content.res.TypedArray.getDrawable(TypedArray.java:601)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.view.View.<init>(View.java:1951)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.widget.TextView.<init>(TextView.java:344)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.widget.Button.<init>(Button.java:108)
08-15 18:30:39.600: E/AndroidRuntime(334): at android.widget.Button.<init>(Button.java:104)
08-15 18:30:39.600: E/AndroidRuntime(334): ... 28 more
08-15 18:30:45.459: I/Process(334): Sending signal. PID: 334 SIG: 9

Heap sizes vary by device. It is perfectly reasonable that on devices where apps have large heap sizes you will encounter fewer problems than on devices where apps have smaller heap sizes. Your heap could be as low as 16MB, if you are supporting older/lower-resolution devices.

Most android has limited space. Usually 16MB. I highly suggest looking at your image size. Also use weak references where you can to make sure images are only using memory when accessed. (Weak references will force the garbage collected to clean them up quicker.)
And I don't know much about your app with just your logcat error list, but if you have multiple activities, kill the ones you don't need. Might seem like obvious advice, maybe not, but it will free up space.

As others stated, the heap size for an Application is limited. The minimum is 16MB and veries from device to device (it's a setting of the virtual machine).
Some suggestions what you could do:
You can load a smaller version of the image, if not needed in full resolution. Here is how to do it: http://developer.android.com/reference/android/graphics/BitmapFactory.Options.html
Check if enough free memory is available; If memory gets low, you can just free images that are not directly needed right now and load them again, if they are needed.
Here is some code sniped for checking how much free memory is left:
long free = Runtime.getRuntime().freeMemory();

Caused by: java.lang.OutOfMemoryError: bitmap size exceeds VM budget
that line says it all.
The bitmaps are hogging all the memory of some devices (devices that the VM stack limit is higher). You should look into better memory management for this application such as LruCache, decode bitmaps with lower quality, etc.
edit:
do not use WeakReference as some users might suggest.
check this question Does Android need to load a complete Bitmap from a file before sampling it down? and also this video http://www.youtube.com/watch?v=gbQb1PVjfqM
direct explanations/teachings/techniques from the creators of the platform and say to not use WeakReference.