Develop Reference

Why Android Volley library is unable to connect asp.net web api?

I am trying to call asp.net web api from Android Client using Volley library. The .net API is working fine and listening ports are:
http://localhost:5000 and https://localhost:5001 in my local machine.
But,When, I try to run android client keeping the base url as http://10.0.2.2:5000/api/login
I found below error in console->
04/23 23:13:41: Launching 'app' on Nexus 6 API 24.
Install successfully finished in 9 s 435 ms.
$ adb shell am start -n "com.example.tourexpwip/com.example.tourexpwip.MainActivity" -a android.intent.action.MAIN -c android.intent.category.LAUNCHER
Connected to process 3662 on device 'Nexus_6_API_24 [emulator-5554]'.
Capturing and displaying logcat messages from application. This behavior can be disabled in the "Logcat output" section of the "Debugger" settings page.
I/art: Late-enabling -Xcheck:jni
W/art: Unexpected CPU variant for X86 using defaults: x86
W/System: ClassLoader referenced unknown path: /data/app/com.example.tourexpwip-1/lib/x86
W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter androidx.vectordrawable.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable
I/System.out: URL: http://10.0.2.2:5000/api/login/
D/NetworkSecurityConfig: No Network Security Config specified, using platform default
D/: HostConnection::get() New Host Connection established 0xa67ec7c0, tid 3662
E/Volley: [210] NetworkUtility.shouldRetryException: Unexpected response code 307 for http://10.0.2.2:5000/api/login/
D/: HostConnection::get() New Host Connection established 0xa67ecac0, tid 3683
I/OpenGLRenderer: Initialized EGL, version 1.4
D/OpenGLRenderer: Swap behavior 1
W/OpenGLRenderer: Failed to choose config with EGL_SWAP_BEHAVIOR_PRESERVED, retrying without...
D/OpenGLRenderer: Swap behavior 0
D/EGL_emulation: eglCreateContext: 0xb5c05660: maj 2 min 0 rcv 2
D/EGL_emulation: eglMakeCurrent: 0xb5c05660: ver 2 0 (tinfo 0xb5c032b0)
W/System.err: com.android.volley.ServerError
at com.android.volley.toolbox.NetworkUtility.shouldRetryException(NetworkUtility.java:201)
W/System.err: at com.android.volley.toolbox.BasicNetwork.performRequest(BasicNetwork.java:145)
at com.android.volley.NetworkDispatcher.processRequest(NetworkDispatcher.java:132)
W/System.err: at com.android.volley.NetworkDispatcher.processRequest(NetworkDispatcher.java:111)
at com.android.volley.NetworkDispatcher.run(NetworkDispatcher.java:90)
I/Choreographer: Skipped 68 frames! The application may be doing too much work on its main thread.
D/EGL_emulation: eglMakeCurrent: 0xb5c05660: ver 2 0 (tinfo 0xb5c032b0)
I/Choreographer: Skipped 35 frames! The application may be doing too much work on its main thread.
The controller class for login in ASP.NET web api->
namespace TourExpWIP1.Controllers
{
[Route("api/[controller]")]
[ApiController]
public class LoginController : ControllerBase
{
NetCoreAuthenticationContext dbContext = new NetCoreAuthenticationContext();
public string Post([FromBody] TblUser value)
{
if (dbContext.TblUser.Any(user => user.UserName.Equals(value.UserName)))
{
TblUser user = dbContext.TblUser.Where(u => u.UserName.Equals(value.UserName)).First();
var client_post_hash_password = Convert.ToBase64String(
Common.SaltHashPassword(
Encoding.ASCII.GetBytes(value.Password),
Convert.FromBase64String(user.Salt)));
if (client_post_hash_password.Equals(user.Password))
return JsonConvert.SerializeObject(user);
else return JsonConvert.SerializeObject("Wrong Password");
}
else
{
return JsonConvert.SerializeObject("user does not exists in db");
}
}
}
}

Try this
1.In Android Manifiest, in tag application add:
inside tag application add this tag:
<uses-library android:name="org.apache.http.legacy" android:required="false"/>
<application
android:usesCleartextTraffic="true"
android:networkSecurityConfig="#xml/network_security_config"
...
/>
2.With a corresponding network_security_config.xml in app/src/main/res/xml/:
<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
<base-config cleartextTrafficPermitted="true" />
</network-security-config>
More details please find from here- Link

App crashes in the android studio emulator in maps activity

I have created a google map activity in android studio. I have also generated an api key from the link given and placed it in the appropriate place. But when I run the app it crashes without displaying anything. Here is the logcat
2018-12-19 16:13:00.080 17295-17295/? I/ik7.locationap: Not late-enabling -Xcheck:jni (already on)
2018-12-19 16:13:00.312 17295-17295/? W/ik7.locationap: Unexpected CPU variant for X86 using defaults: x86
2018-12-19 16:13:00.667 17295-17295/com.example.nik7.locationapp W/ik7.locationap: JIT profile information will not be recorded: profile file does not exits.
2018-12-19 16:13:00.669 17295-17295/com.example.nik7.locationapp I/chatty: uid=10087(com.example.nik7.locationapp) identical 10 lines
2018-12-19 16:13:00.670 17295-17295/com.example.nik7.locationapp W/ik7.locationap: JIT profile information will not be recorded: profile file does not exits.
2018-12-19 16:13:00.733 17295-17295/com.example.nik7.locationapp I/InstantRun: starting instant run server: is main process
2018-12-19 16:13:01.001 17295-17295/com.example.nik7.locationapp I/zzbz: Making Creator dynamically
2018-12-19 16:13:01.022 17295-17295/com.example.nik7.locationapp W/ik7.locationap: Unsupported class loader
2018-12-19 16:13:01.023 17295-17295/com.example.nik7.locationapp W/ik7.locationap: Skipping duplicate class check due to unsupported classloader
2018-12-19 16:13:01.033 17295-17295/com.example.nik7.locationapp I/DynamiteModule: Considering local module com.google.android.gms.maps_dynamite:0 and remote module com.google.android.gms.maps_dynamite:221
2018-12-19 16:13:01.033 17295-17295/com.example.nik7.locationapp I/DynamiteModule: Selected remote version of com.google.android.gms.maps_dynamite, version >= 221
2018-12-19 16:13:01.033 17295-17295/com.example.nik7.locationapp V/DynamiteModule: Dynamite loader version >= 2, using loadModule2NoCrashUtils
2018-12-19 16:13:01.113 17295-17295/com.example.nik7.locationapp W/ik7.locationap: Unsupported class loader
2018-12-19 16:13:01.131 17295-17295/com.example.nik7.locationapp W/ik7.locationap: Skipping duplicate class check due to unsupported classloader
2018-12-19 16:13:01.180 17295-17295/com.example.nik7.locationapp I/Google Maps Android API: Google Play services client version: 12451000
2018-12-19 16:13:01.192 17295-17295/com.example.nik7.locationapp I/Google Maps Android API: Google Play services package version: 14799040
2018-12-19 16:13:01.319 17295-17295/com.example.nik7.locationapp W/ik7.locationap: Accessing hidden field Ljava/nio/Buffer;->address:J (light greylist, reflection)
2018-12-19 16:13:01.712 17295-17295/com.example.nik7.locationapp D/OpenGLRenderer: HWUI GL Pipeline
2018-12-19 16:13:01.877 17295-17341/com.example.nik7.locationapp I/ConfigStore: android::hardware::configstore::V1_0::ISurfaceFlingerConfigs::hasWideColorDisplay retrieved: 0
2018-12-19 16:13:01.878 17295-17341/com.example.nik7.locationapp I/ConfigStore: android::hardware::configstore::V1_0::ISurfaceFlingerConfigs::hasHDRDisplay retrieved: 0
2018-12-19 16:13:01.878 17295-17341/com.example.nik7.locationapp I/OpenGLRenderer: Initialized EGL, version 1.4
2018-12-19 16:13:01.878 17295-17341/com.example.nik7.locationapp D/OpenGLRenderer: Swap behavior 1
2018-12-19 16:13:01.883 17295-17341/com.example.nik7.locationapp W/OpenGLRenderer: Failed to choose config with EGL_SWAP_BEHAVIOR_PRESERVED, retrying without...
2018-12-19 16:13:01.883 17295-17341/com.example.nik7.locationapp D/OpenGLRenderer: Swap behavior 0
2018-12-19 16:13:01.907 17295-17341/com.example.nik7.locationapp D/EGL_emulation: eglCreateContext: 0xe8310280: maj 2 min 0 rcv 2
2018-12-19 16:13:01.913 17295-17341/com.example.nik7.locationapp D/EGL_emulation: eglMakeCurrent: 0xe8310280: ver 2 0 (tinfo 0xe7093fa0)
2018-12-19 16:13:02.025 17295-17341/com.example.nik7.locationapp D/EGL_emulation: eglMakeCurrent: 0xe8310280: ver 2 0 (tinfo 0xe7093fa0)
2018-12-19 16:13:02.034 17295-17338/com.example.nik7.locationapp D/EGL_emulation: eglCreateContext: 0xe9d05f00: maj 1 min 0 rcv 1
2018-12-19 16:13:02.229 17295-17338/com.example.nik7.locationapp D/EGL_emulation: eglMakeCurrent: 0xe9d05f00: ver 1 0 (tinfo 0xe9d03470)
2018-12-19 16:13:02.564 17295-17319/com.example.nik7.locationapp D/NetworkSecurityConfig: No Network Security Config specified, using platform default
2018-12-19 16:13:03.305 17295-17319/com.example.nik7.locationapp E/AndroidRuntime: FATAL EXCEPTION: Thread-6
Process: com.example.nik7.locationapp, PID: 17295
java.lang.NoClassDefFoundError: Failed resolution of: Lorg/apache/http/ProtocolVersion;
at ez.b(:com.google.android.gms.dynamite_mapsdynamite#14799084#14.7.99 (100700-223214910):3)
at ey.a(:com.google.android.gms.dynamite_mapsdynamite#14799084#14.7.99 (100700-223214910):3)
at fa.a(:com.google.android.gms.dynamite_mapsdynamite#14799084#14.7.99 (100700-223214910):15)
at com.google.maps.api.android.lib6.drd.al.a(:com.google.android.gms.dynamite_mapsdynamite#14799084#14.7.99 (100700-223214910):6)
at ed.a(:com.google.android.gms.dynamite_mapsdynamite#14799084#14.7.99 (100700-223214910):21)
at ed.run(:com.google.android.gms.dynamite_mapsdynamite#14799084#14.7.99 (100700-223214910):8)
Caused by: java.lang.ClassNotFoundException: Didn't find class "org.apache.http.ProtocolVersion" on path: DexPathList[[zip file "/data/user_de/0/com.google.android.gms/app_chimera/m/00000015/MapsDynamite.apk"],nativeLibraryDirectories=[/data/user_de/0/com.google.android.gms/app_chimera/m/00000015/MapsDynamite.apk!/lib/x86, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:134)
at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
at ad.loadClass(:com.google.android.gms.dynamite_dynamiteloader#14799084#14.7.99 (100700-223214910):4)
at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
at ez.b(:com.google.android.gms.dynamite_mapsdynamite#14799084#14.7.99 (100700-223214910):3) 
at ey.a(:com.google.android.gms.dynamite_mapsdynamite#14799084#14.7.99 (100700-223214910):3) 
at fa.a(:com.google.android.gms.dynamite_mapsdynamite#14799084#14.7.99 (100700-223214910):15) 
at com.google.maps.api.android.lib6.drd.al.a(:com.google.android.gms.dynamite_mapsdynamite#14799084#14.7.99 (100700-223214910):6) 
at ed.a(:com.google.android.gms.dynamite_mapsdynamite#14799084#14.7.99 (100700-223214910):21) 
at ed.run(:com.google.android.gms.dynamite_mapsdynamite#14799084#14.7.99 (100700-223214910):8) 
2018-12-19 16:13:03.338 17295-17295/com.example.nik7.locationapp E/SchedPolicy: set_timerslack_ns write failed: Operation not permitted
2018-12-19 16:13:03.379 17295-17319/com.example.nik7.locationapp I/Process: Sending signal. PID: 17295 SIG: 9
This is the compelte log.I have even tried by removing the restrictions but that didn't work. Whats the issue here. I have also seledted api 23 marshmallow. I have done nothing except entering the api key in its place
EDIT: I also included the key in the manifest but still the app is crashing
<meta-data
android:name="com.google.android.geo.API_KEY"
android:value="YOUR_API_KEY"/>

EDIT:
Seems to be an issue in API 28
To fix it add this code under application in your manifest file:
<uses-library android:name="org.apache.http.legacy" android:required="false"/>
Its probably because you dont have google play services installed. If you ran the app on your actual phone it would work just fine.

To fix it, you either add this line of code inside the in the manifest
<uses-library android:name="org.apache.http.legacy" android:required="false"/>
Or
to upgrade your play-services-maps in build.gradle to
implementation 'com.google.android.gms:play-services-maps:16.1.0'
That worked for me

Facebook Audience Network not displaying test Ads. Already added TestDevice

I created a new sample project for displaying the Facebook audience network Banner ad at bottom of my activity.
My app is running in device but not displaying anything at bottom. I already added the hash for test device.
MainActivity.java
package liveradio.radioz.com.facebookads;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import com.facebook.ads.*;
import android.widget.LinearLayout;
public class MainActivity extends AppCompatActivity {
private AdView adView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
adView = new AdView(this, "PLACEMENT-ID", AdSize.BANNER_HEIGHT_50);
// Find the Ad Container
LinearLayout adContainer = (LinearLayout) findViewById(R.id.banner_container);
// Add the ad view to your activity layout
adContainer.addView(adView);
AdSettings.addTestDevice("DEVICE-ID");
// Request an ad
adView.loadAd();
}
#Override
protected void onDestroy() {
if (adView != null) {
adView.destroy();
}
super.onDestroy();
}
}
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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"
tools:context="liveradio.radioz.com.facebookads.MainActivity">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<LinearLayout
android:id="#+id/banner_container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:orientation="vertical"
/>
</android.support.constraint.ConstraintLayout>
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="liveradio.radioz.com.facebookads">
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
Log :
01/12 12:13:01: Launching app
$ adb shell am start -n "liveradio.radioz.com.facebookads/liveradio.radioz.com.facebookads.MainActivity" -a android.intent.action.MAIN -c android.intent.category.LAUNCHER -D
Waiting for application to come online: liveradio.radioz.com.facebookads.test | liveradio.radioz.com.facebookads
Waiting for application to come online: liveradio.radioz.com.facebookads.test | liveradio.radioz.com.facebookads
Waiting for application to come online: liveradio.radioz.com.facebookads.test | liveradio.radioz.com.facebookads
Connecting to liveradio.radioz.com.facebookads
Waiting for application to start debug server
Waiting for application to come online: liveradio.radioz.com.facebookads.test | liveradio.radioz.com.facebookads
Connecting to liveradio.radioz.com.facebookads
Connected to the target VM, address: 'localhost:8645', transport: 'socket'
Capturing and displaying logcat messages from application. This behavior can be disabled in the "Logcat output" section of the "Debugger" settings page.
I/zygote: Not late-enabling -Xcheck:jni (already on)
W/zygote: Suspending all threads took: 83.944ms
W/zygote: Unexpected CPU variant for X86 using defaults: x86
I/zygote: Background concurrent copying GC freed 9752(4MB) AllocSpace objects, 0(0B) LOS objects, 61% free, 973KB/2MB, paused 48.188ms total 236.235ms
W/ActivityThread: Application liveradio.radioz.com.facebookads is waiting for the debugger on port 8100...
I/System.out: Sending WAIT chunk
I/zygote: Debugger is active
I/System.out: Debugger has connected
I/System.out: waiting for debugger to settle...
I/System.out: waiting for debugger to settle...
I/System.out: waiting for debugger to settle...
I/System.out: waiting for debugger to settle...
I/System.out: waiting for debugger to settle...
I/System.out: waiting for debugger to settle...
I/System.out: waiting for debugger to settle...
I/System.out: debugger has settled (1486)
I/InstantRun: starting instant run server: is main process
I/WebViewFactory: Loading com.android.chrome version 61.0.3163.98 (code 316409812)
I/zygote: The ClassLoaderContext is a special shared library.
I/cr_LibraryLoader: Time to load native libraries: 3 ms (timestamps 6510-6513)
I/chromium: [INFO:library_loader_hooks.cc(136)] Chromium logging enabled: level = 0, default verbosity = 0
I/cr_LibraryLoader: Expected native library version number "61.0.3163.98", actual native library version number "61.0.3163.98"
E/FBAudienceNetwork: You don't call AudienceNetworkAds.initialize(). Some functionality may not work properly.
D/IS_UNITY: false
D/AdInternalSettings: Test mode device hash: 877dd37b-fff7-4fa1-b83d-776592220359
D/AdInternalSettings: When testing your app with Facebook's ad units you must specify the device hashed ID to ensure the delivery of test ads, add the following code before loading an ad: AdSettings.addTestDevice("877dd37b-fff7-4fa1-b83d-776592220359");
D/IS_UNITY: false
E/ActivityThread: Failed to find provider info for com.facebook.katana.provider.AttributionIdProvider
D/OpenGLRenderer: HWUI GL Pipeline
V/StudioProfiler: StudioProfilers agent attached.
V/StudioProfiler: Acquiring Application for Events
V/StudioProfiler: Transformed class: java/net/URL
W/zygote: Current dex file has more than one class in it. Calling RetransformClasses on this class might fail if no transformations are applied to it!
V/StudioProfiler: Memory control stream started.
[ 01-12 12:13:06.606 20774:20877 D/ ]
HostConnection::get() New Host Connection established 0xd1835a80, tid 20877
I/zygote: android::hardware::configstore::V1_0::ISurfaceFlingerConfigs::hasWideColorDisplay retrieved: 0
I/OpenGLRenderer: Initialized EGL, version 1.4
D/OpenGLRenderer: Swap behavior 1
W/OpenGLRenderer: Failed to choose config with EGL_SWAP_BEHAVIOR_PRESERVED, retrying without...
D/OpenGLRenderer: Swap behavior 0
D/EGL_emulation: eglCreateContext: 0xe4b85540: maj 3 min 0 rcv 3
D/EGL_emulation: eglMakeCurrent: 0xe4b85540: ver 3 0 (tinfo 0xe4b83360)
D/EGL_emulation: eglMakeCurrent: 0xe4b85540: ver 3 0 (tinfo 0xe4b83360)
W/cr_ChildProcLH: Create a new ChildConnectionAllocator with package name = com.android.chrome, sandboxed = true
I/cr_BrowserStartup: Initializing chromium process, singleProcess=false
[ 01-12 12:13:07.026 20774:20774 D/ ]
HostConnection::get() New Host Connection established 0xd1583c00, tid 20774
D/EGL_emulation: eglCreateContext: 0xcecec360: maj 3 min 0 rcv 3
D/EGL_emulation: eglMakeCurrent: 0xcecec360: ver 3 0 (tinfo 0xe21fff60)
D/NetworkSecurityConfig: No Network Security Config specified, using platform default
W/cr_CrashFileManager: /data/user/0/liveradio.radioz.com.facebookads/cache/WebView/Crash Reports does not exist or is not a directory
W/com.facebookads: type=1400 audit(0.0:22): avc: denied { read } for name="vmstat" dev="proc" ino=4026532039 scontext=u:r:untrusted_app:s0:c512,c768 tcontext=u:object_r:proc:s0 tclass=file permissive=0
D/IS_UNITY: false
I/zygote: Background concurrent copying GC freed 7886(1025KB) AllocSpace objects, 5(100KB) LOS objects, 50% free, 1746KB/3MB, paused 680us total 122.639ms
I/zygote: Do partial code cache collection, code=30KB, data=25KB
I/zygote: After code cache collection, code=30KB, data=25KB
I/zygote: Increasing code cache capacity to 128KB
V/StudioProfiler: Live memory tracking disabled.
V/StudioProfiler: Live memory tracking enabled.
V/StudioProfiler: JNIEnv not attached
V/StudioProfiler: Loaded classes: 6311
V/StudioProfiler: Tracking initialization took: 648527000ns
I/zygote: Do partial code cache collection, code=60KB, data=44KB
I/zygote: After code cache collection, code=56KB, data=43KB
I/zygote: Increasing code cache capacity to 256KB
Disconnected from the target VM, address: 'localhost:8645', transport: 'socket'
I'm getting the build successful and installed in my device. When I open the app I can't see any ads or test ads at bottom of my main activity.

If you've added Audience network libraries, you can add the code below to show test ads without worrying about adding a test device.
if (BuildConfig.DEBUG) {
AdSettings.setTestMode(true);
}
Add this code, preferably in your Application class.

First Implement this library:
implementation 'com.facebook.android:audience-network-sdk:4.99.1'
than use below code:
com.facebook.ads.AdView adView;
adView = new com.facebook.ads.AdView(this, "PLACEMENT-ID",
com.facebook.ads.AdSize.BANNER_HEIGHT_50);
((LinearLayout) adContainer).addView(adView);
adView.loadAd();

first, add this library to your grade file
implementation 'com.facebook.android:audience-network-sdk:6.12.0'
then paste this code in your xml file
<LinearLayout
android:id="#+id/banner_container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:orientation="vertical"
/>
In your Java code paste this code and also replace IMG_16_9_APP_INSTALL#YOUR_PLACEMENT_ID with your banner ad ID
adView = new AdView(this, "IMG_16_9_APP_INSTALL#YOUR_PLACEMENT_ID", AdSize.BANNER_HEIGHT_50);
LinearLayout adContainer = (LinearLayout) findViewById(R.id.banner_container);
adContainer.addView(adView);
adView.loadAd();
for more information you can follow official link of meta
https://developers.facebook.com/docs/audience-network/setting-up/ad-setup/android/banner

why android emulator not working

When I updated the Android Studio a few days ago, the Android Emulator stopped working. I tried to open a blank activity and the emulator did not work as well.
All the SDK tools have been installed and updated. Below are the event log and Logcat of a blank activity (Hello World!) when I run the blank activity.
Event Log: 1/1/2018 4:43 PM Gradle sync started
4:43 PM Project setup started
4:44 PM Gradle sync finished in 34s 677ms
4:44 PM Executing tasks: [:app:generateDebugSources, :app:generateDebugAndroidTestSources, :app:mockableAndroidJar]
4:45 PM Gradle build finished in 1m 28s 392ms
5:00 PM Unable to run 'adb': null
5:00 PM 'C:\Media\platform-tools\adb.exe start-server' failed -- run manually if necessary
5:00 PM * daemon not running; starting now at tcp:5037
5:00 PM * daemon started successfully
5:03 PM Executing tasks: [:app:assembleDebug]
5:03 PM Emulator: emulator: ERROR: Missing initial data partition file: C:\Users\Android Studio.android\avd\Nexus_5_API_27.avd/userdata.img
5:03 PM Emulator: compileAndValidateCoreShader: fail to compile. infolog Fragment shader failed to compile with the following errors:
5:03 PM Emulator: ERROR: 0:85: error(#143) Undeclared identifier undefined
5:03 PM Emulator: ERROR: 0:85: error(#132) Syntax error: '<' parse error
5:03 PM Emulator: ERROR: error(#273) 2 compilation errors. No code generated
5:03 PM Emulator:
5:03 PM Emulator: linkAndValidateProgram: fail to link program. infolog: Fragment shader(s) were not successfully compiled before glLinkProgram() was called. Link failed.
5:03 PM Emulator:
Logcat:
01-01 04:05:27.996 3188-3188/com.example.androidstudio.fixit I/zygote: Not late-enabling -Xcheck:jni (already on)
01-01 04:05:28.262 3188-3188/com.example.androidstudio.fixit W/zygote: Unexpected CPU variant for X86 using defaults: x86
01-01 04:05:28.565 3188-3201/com.example.androidstudio.fixit I/zygote: Debugger is no longer active
01-01 04:05:28.915 3188-3188/com.example.androidstudio.fixit I/InstantRun: starting instant run server: is main process
01-01 04:05:29.650 3188-3235/com.example.androidstudio.fixit D/OpenGLRenderer: HWUI GL Pipeline
01-01 04:05:29.872 3188-3235/com.example.androidstudio.fixit I/zygote: android::hardware::configstore::V1_0::ISurfaceFlingerConfigs::hasWideColorDisplay retrieved: 0
01-01 04:05:29.872 3188-3235/com.example.androidstudio.fixit I/OpenGLRenderer: Initialized EGL, version 1.4
01-01 04:05:29.872 3188-3235/com.example.androidstudio.fixit D/OpenGLRenderer: Swap behavior 1
01-01 04:05:29.873 3188-3235/com.example.androidstudio.fixit W/OpenGLRenderer: Failed to choose config with EGL_SWAP_BEHAVIOR_PRESERVED, retrying without...
01-01 04:05:29.873 3188-3235/com.example.androidstudio.fixit D/OpenGLRenderer: Swap behavior 0
01-01 04:05:30.001 3188-3235/com.example.androidstudio.fixit D/EGL_emulation: eglCreateContext: 0xa2b59da0: maj 2 min 0 rcv 2
01-01 04:05:30.073 3188-3235/com.example.androidstudio.fixit D/EGL_emulation: eglMakeCurrent: 0xa2b59da0: ver 2 0 (tinfo 0xac24c670)
01-01 04:05:30.269 3188-3235/com.example.androidstudio.fixit D/EGL_emulation: eglMakeCurrent: 0xa2b59da0: ver 2 0 (tinfo 0xac24c670)

I went to the Settings->Advanced in the Extented Controls in the emulator and then to Advanced and changed the OpenGL ES Render to SwiftShader and the OpenGL ES API level to Compatibility (OpenGL ES 1.1/2.0) and the errors appear to have gone away and the screen is now not displaying a white screen and is instead is displaying the google map, which is what the program is supposed to do. Does this seem like a good solution? Is there more I should do to not get screwed up in the future?

ClassLoader referenced unknown path /data/app/.../1/lib/arm64

I am concerned what the System warning in my android app means.
ch.ethz.inf.vs.a4.minker.einz W/System: ClassLoader referenced unknown path: /data/app/ch.ethz.inf.vs.a4.minker.einz-1/lib/arm64
This warning comes up when I run the app and then don't do anything - just displaying the main Activity. The app does not crash, but I'd like to know why these warnings are showing up.
This is the complete logcat when I run the application on my Sony Xperia device, but the Emulator creates similar logs.
11-25 17:02:48.261 27908-27908/ch.ethz.inf.vs.a4.minker.einz I/art: Late-
enabling -Xcheck:jni
11-25 17:02:48.295 27908-27908/ch.ethz.inf.vs.a4.minker.einz W/System: ClassLoader referenced unknown path: /data/app/ch.ethz.inf.vs.a4.minker.einz-1/lib/arm64
11-25 17:02:48.319 27908-27908/ch.ethz.inf.vs.a4.minker.einz W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter android.support.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable
11-25 17:02:48.400 27908-27936/ch.ethz.inf.vs.a4.minker.einz I/Adreno: QUALCOMM build : ce5aeb9, I750f7f2fa6
Build Date : 03/24/17
OpenGL ES Shader Compiler Version: XE031.09.00.03
Local Branch :
Remote Branch : quic/LA.BF64.1.2.3_rb1.11
Remote Branch : NONE
Reconstruct Branch : NOTHING
11-25 17:02:48.405 27908-27936/ch.ethz.inf.vs.a4.minker.einz I/OpenGLRenderer: Initialized EGL, version 1.4
11-25 17:02:48.406 27908-27936/ch.ethz.inf.vs.a4.minker.einz D/OpenGLRenderer: Swap behavior 1
11-25 17:02:48.435 27908-27908/ch.ethz.inf.vs.a4.minker.einz I/Timeline: Timeline: Activity_idle id: android.os.BinderProxy#d84f7af time:215890379
Log on Emulator (Nexus 5 API 23 (Android 6.0, API23))
11-25 16:18:02.052 16216-16216/? I/art: Not late-enabling -Xcheck:jni (already on)
11-25 16:18:02.092 16216-16216/ch.ethz.inf.vs.a4.minker.einz W/System: ClassLoader referenced unknown path: /data/app/ch.ethz.inf.vs.a4.minker.einz-1/lib/x86
11-25 16:18:02.105 16216-16216/ch.ethz.inf.vs.a4.minker.einz W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter android.support.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable
11-25 16:18:02.141 16216-16241/ch.ethz.inf.vs.a4.minker.einz D/OpenGLRenderer: Use EGL_SWAP_BEHAVIOR_PRESERVED: true
[ 11-25 16:18:02.153 16216:16216 D/ ]
HostConnection::get() New Host Connection established 0xab1a4140, tid 16216
11-25 16:18:02.227 16216-16241/ch.ethz.inf.vs.a4.minker.einz I/OpenGLRenderer: Initialized EGL, version 1.4
11-25 16:18:02.227 16216-16241/ch.ethz.inf.vs.a4.minker.einz W/OpenGLRenderer: Failed to choose config with EGL_SWAP_BEHAVIOR_PRESERVED, retrying without...
11-25 16:18:02.285 16216-16241/ch.ethz.inf.vs.a4.minker.einz D/EGL_emulation: eglCreateContext: 0xaee144e0: maj 3 min 1 rcv 4
11-25 16:18:02.298 16216-16241/ch.ethz.inf.vs.a4.minker.einz D/EGL_emulation: eglMakeCurrent: 0xaee144e0: ver 3 1 (tinfo 0xaee126f0)
11-25 16:18:02.299 16216-16241/ch.ethz.inf.vs.a4.minker.einz E/eglCodecCommon: glUtilsParamSize: unknow param 0x000082da
11-25 16:18:02.299 16216-16241/ch.ethz.inf.vs.a4.minker.einz E/eglCodecCommon: glUtilsParamSize: unknow param 0x00008cdf
11-25 16:18:02.299 16216-16241/ch.ethz.inf.vs.a4.minker.einz E/eglCodecCommon: glUtilsParamSize: unknow param 0x00008824
11-25 16:18:02.370 16216-16241/ch.ethz.inf.vs.a4.minker.einz D/EGL_emulation: eglMakeCurrent: 0xaee144e0: ver 3 1 (tinfo 0xaee126f0)
Log on Emulator Nexus 5X API 26 x86 (Android 8.0.0, API 26)
11-25 16:19:22.549 6786-6786/? I/zygote: Not late-enabling -Xcheck:jni (already on)
11-25 16:19:22.560 6786-6786/? W/zygote: Unexpected CPU variant for X86 using defaults: x86
11-25 16:19:22.730 6786-6804/ch.ethz.inf.vs.a4.minker.einz D/OpenGLRenderer: HWUI GL Pipeline
11-25 16:19:22.773 6786-6804/ch.ethz.inf.vs.a4.minker.einz I/OpenGLRenderer: Initialized EGL, version 1.4
11-25 16:19:22.773 6786-6804/ch.ethz.inf.vs.a4.minker.einz D/OpenGLRenderer: Swap behavior 1
11-25 16:19:22.773 6786-6804/ch.ethz.inf.vs.a4.minker.einz W/OpenGLRenderer: Failed to choose config with EGL_SWAP_BEHAVIOR_PRESERVED, retrying without...
11-25 16:19:22.773 6786-6804/ch.ethz.inf.vs.a4.minker.einz D/OpenGLRenderer: Swap behavior 0
11-25 16:19:22.783 6786-6804/ch.ethz.inf.vs.a4.minker.einz D/EGL_emulation: eglCreateContext: 0x989fda40: maj 3 min 1 rcv 4
11-25 16:19:22.811 6786-6804/ch.ethz.inf.vs.a4.minker.einz D/EGL_emulation: eglMakeCurrent: 0x989fda40: ver 3 1 (tinfo 0xa4a8b850)
11-25 16:19:22.812 6786-6804/ch.ethz.inf.vs.a4.minker.einz E/eglCodecCommon: glUtilsParamSize: unknow param 0x000082da
11-25 16:19:22.812 6786-6804/ch.ethz.inf.vs.a4.minker.einz E/eglCodecCommon: glUtilsParamSize: unknow param 0x000082da
11-25 16:19:22.812 6786-6804/ch.ethz.inf.vs.a4.minker.einz E/eglCodecCommon: glUtilsParamSize: unknow param 0x00008cdf
11-25 16:19:22.812 6786-6804/ch.ethz.inf.vs.a4.minker.einz E/eglCodecCommon: glUtilsParamSize: unknow param 0x00008cdf
11-25 16:19:22.812 6786-6804/ch.ethz.inf.vs.a4.minker.einz E/eglCodecCommon: glUtilsParamSize: unknow param 0x00008824
11-25 16:19:22.812 6786-6804/ch.ethz.inf.vs.a4.minker.einz E/eglCodecCommon: glUtilsParamSize: unknow param 0x00008824
11-25 16:19:22.884 6786-6804/ch.ethz.inf.vs.a4.minker.einz D/EGL_emulation: eglMakeCurrent: 0x989fda40: ver 3 1 (tinfo 0xa4a8b850)
This answer mentioned disabling instantRun, which I have already done because of my version of IntelliJ not supporting the latest version of gradle yet (last time I checked with support). It also mentions WiFi, but that doesn't seem to make a difference.
This answer mentions clearing app cache and data, but this also does not make a difference.
It might be worth mentioning that the first time I run the app, IntelliJ shows the following error in the logcat. This happens both on the emulator and my real device. With "the first time", I mean that it does not show the error when I click run again and select "restart app". This behaviour is not 100% consistent though.
11-25 16:14:41.358 14185-14185/? I/art: Not late-enabling -Xcheck:jni (already on)
11-25 16:14:41.371 14185-14189/? E/art: Failed sending reply to debugger: Broken pipe
11-25 16:14:41.371 14185-14189/? I/art: Debugger is no longer active
11-25 16:14:41.403 14185-14185/? W/System: ClassLoader referenced unknown path: /data/app/ch.ethz.inf.vs.a4.minker.einz-2/lib/x86
What could be reasons for these warnings? I am afraid that if I ignore them, I will at some point spend days debugging only to find out that these warnings would have told me.

you need to set the flag of intent.
Intent intent = new Intent(context,Route.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(intent);