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unfortunately my app has stopped. --here is my logcat [duplicate]

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What is a NullPointerException, and how do I fix it?
(12 answers)
Closed 5 years ago.
01-02 05:30:50.220 8776-8776/com.wordpress.alhazn.puhaba E/AndroidRuntime: FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.wordpress.alhazn.puhaba/com.wordpress.alhazn.puhaba.MainActivity}: java.lang.NullPointerException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2045)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2146)
at android.app.ActivityThread.access$700(ActivityThread.java:140)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1238)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:177)
at android.app.ActivityThread.main(ActivityThread.java:4944)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1038)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:805)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at android.support.v7.app.AppCompatDelegateImplBase.<init>(AppCompatDelegateImplBase.java:117)
at android.support.v7.app.AppCompatDelegateImplV9.<init>(AppCompatDelegateImplV9.java:149)
at android.support.v7.app.AppCompatDelegateImplV11.<init>(AppCompatDelegateImplV11.java:29)
at android.support.v7.app.AppCompatDelegateImplV14.<init>(AppCompatDelegateImplV14.java:54)
at android.support.v7.app.AppCompatDelegate.create(AppCompatDelegate.java:202)
at android.support.v7.app.AppCompatDelegate.create(AppCompatDelegate.java:183)
at android.support.v7.app.AppCompatActivity.getDelegate(AppCompatActivity.java:519)
at android.support.v7.app.AppCompatActivity.findViewById(AppCompatActivity.java:190)
at com.wordpress.alhazn.puhaba.MainActivity.<init>(MainActivity.java:44)
at java.lang.Class.newInstanceImpl(Native Method)
at java.lang.Class.newInstance(Class.java:1319)
at android.app.Instrumentation.newActivity(Instrumentation.java:1068)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2036)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2146)
at android.app.ActivityThread.access$700(ActivityThread.java:140)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1238)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:177)
at android.app.ActivityThread.main(ActivityThread.java:4944)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1038)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:805)
at dalvik.system.NativeStart.main(Native Method)

Move your findViewById() calls later in the activity lifecycle. Not in <init> i.e. constructor/field initialization but rather e.g. onCreate() after you've also called setContentView().

Cordova hello world app crashing

I am new in Android Development. I am working on cordova platform
I have created a sample hello world app and getting this error when i am trying to open it in genymotion. ALthough the app compile succesfully but when i run it in genymotion it just shows the prompt with text "Unfortunately "APP" has stopped."
The Error log shows.
01-12 08:16:04.867 2073-2073/com.technoserves.crudnew D/dalvikvm﹕ Late-enabling CheckJNI
01-12 08:16:06.107 2073-2073/com.technoserves.crudnew W/dalvikvm﹕ Unable to resolve superclass of Lcom/technoserves/crudnew/CordovaApp; (14)
01-12 08:16:06.119 2073-2073/com.technoserves.crudnew W/dalvikvm﹕ Link of class 'Lcom/technoserves/crudnew/CordovaApp;' failed
01-12 08:16:06.135 2073-2073/com.technoserves.crudnew D/AndroidRuntime﹕ Shutting down VM
01-12 08:16:06.135 2073-2073/com.technoserves.crudnew W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0xa6142908)
01-12 08:16:06.155 2073-2073/com.technoserves.crudnew E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.technoserves.crudnew/com.technoserves.crudnew.CordovaApp}: java.lang.ClassNotFoundException: Didn't find class "com.technoserves.crudnew.CordovaApp" on path: /data/app/com.technoserves.crudnew-1.apk
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2106)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
at android.app.ActivityThread.access$600(ActivityThread.java:141)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5041)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.technoserves.crudnew.CordovaApp" on path: /data/app/com.technoserves.crudnew-1.apk
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:65)
at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
at android.app.Instrumentation.newActivity(Instrumentation.java:1054)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2097)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
            at android.app.ActivityThread.access$600(ActivityThread.java:141)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:5041)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
            at dalvik.system.NativeStart.main(Native Method)
01-12 08:16:22.399 2073-2073/com.technoserves.crudnew I/Process﹕ Sending signal. PID: 2073 SIG: 9
I have updated my cordova to resolve but still same error however a few days ago it was working fine and i have build some apps.

First download Cordova jar file from following link:
http://www.java2s.com/Code/JarDownload/cordova/cordova-1.8.1.jar.zip
after that extract the folder and put cordova-1.8.1 inside your libs folder of project in eclipse
And right click on your project--> properties and Select Android from left pane and scroll to bottom remove the cordova library if added.
then clean and build your project.

Cannot load library: reloc_library[1285]: cannot locate 'rand'

I'm trying to use PJSIP library for my Android application.
I built pjsua sample application according to this manual:
https://trac.pjsip.org/repos/wiki/Getting-Started/Android
But when sample application is launching, exception triggers:
12-06 15:03:58.043: D/dalvikvm(628): Trying to load lib /data/data/org.pjsip.pjsua2.app/lib/libpjsua2.so 0x4129d980
12-06 15:03:58.064: W/dalvikvm(628): Exception Ljava/lang/UnsatisfiedLinkError; thrown while initializing Lorg/pjsip/pjsua2/app/MyApp;
12-06 15:03:58.064: D/AndroidRuntime(628): Shutting down VM
12-06 15:03:58.064: W/dalvikvm(628): threadid=1: thread exiting with uncaught exception (group=0x409c01f8)
12-06 15:03:58.083: E/AndroidRuntime(628): FATAL EXCEPTION: main
12-06 15:03:58.083: E/AndroidRuntime(628): java.lang.ExceptionInInitializerError
12-06 15:03:58.083: E/AndroidRuntime(628): at org.pjsip.pjsua2.app.MainActivity.onCreate(MainActivity.java:85)
12-06 15:03:58.083: E/AndroidRuntime(628): at android.app.Activity.performCreate(Activity.java:4465)
12-06 15:03:58.083: E/AndroidRuntime(628): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
12-06 15:03:58.083: E/AndroidRuntime(628): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920)
12-06 15:03:58.083: E/AndroidRuntime(628): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
12-06 15:03:58.083: E/AndroidRuntime(628): at android.app.ActivityThread.access$600(ActivityThread.java:123)
12-06 15:03:58.083: E/AndroidRuntime(628): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
12-06 15:03:58.083: E/AndroidRuntime(628): at android.os.Handler.dispatchMessage(Handler.java:99)
12-06 15:03:58.083: E/AndroidRuntime(628): at android.os.Looper.loop(Looper.java:137)
12-06 15:03:58.083: E/AndroidRuntime(628): at android.app.ActivityThread.main(ActivityThread.java:4424)
12-06 15:03:58.083: E/AndroidRuntime(628): at java.lang.reflect.Method.invokeNative(Native Method)
12-06 15:03:58.083: E/AndroidRuntime(628): at java.lang.reflect.Method.invoke(Method.java:511)
12-06 15:03:58.083: E/AndroidRuntime(628): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
12-06 15:03:58.083: E/AndroidRuntime(628): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
12-06 15:03:58.083: E/AndroidRuntime(628): at dalvik.system.NativeStart.main(Native Method)
12-06 15:03:58.083: E/AndroidRuntime(628): Caused by: java.lang.UnsatisfiedLinkError: Cannot load library: reloc_library[1285]: 37 cannot locate 'rand'...
12-06 15:03:58.083: E/AndroidRuntime(628): at java.lang.Runtime.loadLibrary(Runtime.java:370)
12-06 15:03:58.083: E/AndroidRuntime(628): at java.lang.System.loadLibrary(System.java:535)
12-06 15:03:58.083: E/AndroidRuntime(628): at org.pjsip.pjsua2.app.MyApp.<clinit>(MyApp.java:235)
It seems like appl cannot load libpjsua2.so library. I have never used the NDK before, so i don't have any ideas about this issue, please help me...

This happens if you've built your native components with the android-21 target, but are trying to run it on a device with an older Android version. Unless you take very special care, you can't run binaries built with the android-21 target on older devices. For basic C functions, it shouldn't matter which target version between android-3 and android-20 you use, it should work on all of them, but if you use android-21 it only works on that version and newer.
See https://stackoverflow.com/a/27093163/3115956 for more details on this issue.

mstorsjo answers my question. But i want write one comment:
I had correct properties files, but during pjsip building I found following logs:
sip#ubuntu:~/pjsip/trunk$ ./configure-android
configure-android: APP_PLATFORM not specified, using android-21
configure-android: TARGET_ABI not specified, using armeabi
So if you want compile the project on some specific platform version, you have to set APP_PLATFORM parameter for configure-android script.
TARGET_ABI=armeabi-v7a APP_PLATFORM=android-8 ./configure-android --use-ndk-cflags

I have encountered this when using HUAWEI phone with opus and pngquant jni library for android.
Finally the solution is that I add rand,srand and atof function implementions in my source file. Then the problem gone.
Solution from https://github.com/cocos2d/cocos2d-x/issues/15234
Try it!
static u_long myNextRandom = 1;
double atof(const char *nptr)
{
return (strtod(nptr, NULL));
}
int rand(void)
{
return (int)((myNextRandom = (1103515245 * myNextRandom) + 12345) % ((u_long)RAND_MAX + 1));
}
void srand(u_int seed)
{
myNextRandom = seed;
}

Not able to launch Android Hybrid app using Salesforce Mobile SDK

When I run a project created using forcedroid, I am getting following error in logcat of my ADT.
12-06 05:57:48.176: D/HttpAccess:constructor(833): User-Agent string: SalesforceMobileSDK/2.1.0 android mobile/4.2.2 (sdk) moapp/1.0 Hybrid
12-06 05:57:48.876: I/SalesforceDroidGapActivity.onCreate(833): onCreate called
12-06 05:57:49.026: I/ClientManager:peekRestClient(833): No user account found
12-06 05:57:49.026: I/ClientManager:peekRestClient(833): com.salesforce.androidsdk.rest.ClientManager$AccountInfoNotFoundException: No user account found
12-06 05:57:49.026: I/ClientManager:peekRestClient(833): at com.salesforce.androidsdk.rest.ClientManager.peekRestClient(ClientManager.java:140)
12-06 05:57:49.026: I/ClientManager:peekRestClient(833): at com.salesforce.androidsdk.ui.sfhybrid.SalesforceDroidGapActivity.onCreate(SalesforceDroidGapActivity.java:118)
12-06 05:57:49.026: I/ClientManager:peekRestClient(833): at android.app.Activity.performCreate(Activity.java:5104)
12-06 05:57:49.026: I/ClientManager:peekRestClient(833): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
12-06 05:57:49.026: I/ClientManager:peekRestClient(833): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
12-06 05:57:49.026: I/ClientManager:peekRestClient(833): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
12-06 05:57:49.026: I/ClientManager:peekRestClient(833): at android.app.ActivityThread.access$600(ActivityThread.java:141)
12-06 05:57:49.026: I/ClientManager:peekRestClient(833): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
12-06 05:57:49.026: I/ClientManager:peekRestClient(833): at android.os.Handler.dispatchMessage(Handler.java:99)
12-06 05:57:49.026: I/ClientManager:peekRestClient(833): at android.os.Looper.loop(Looper.java:137)
12-06 05:57:49.026: I/ClientManager:peekRestClient(833): at android.app.ActivityThread.main(ActivityThread.java:5041)
12-06 05:57:49.026: I/ClientManager:peekRestClient(833): at java.lang.reflect.Method.invokeNative(Native Method)
12-06 05:57:49.026: I/ClientManager:peekRestClient(833): at java.lang.reflect.Method.invoke(Method.java:511)
12-06 05:57:49.026: I/ClientManager:peekRestClient(833): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
12-06 05:57:49.026: I/ClientManager:peekRestClient(833): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
12-06 05:57:49.026: I/ClientManager:peekRestClient(833): at dalvik.system.NativeStart.main(Native Method)
12-06 05:57:49.146: D/dalvikvm(833): GC_CONCURRENT freed 279K, 13% free 2623K/3004K, paused 27ms+24ms, total 192ms
12-06 05:57:49.296: I/SalesforceDroidGapActivity.onResumeNotLoggedIn(833): Should authenticate / online - authenticating
12-06 05:57:49.296: I/SalesforceDroidGapActivity.authenticate(833): authenticate called
12-06 05:57:49.296: I/ClientManager:getRestClient(833): No account of type com.salesforce.androisdk found
12-06 05:57:49.936: D/gralloc_goldfish(833): Emulator without GPU emulation detected.
12-06 05:57:50.096: E/Trace(857): error opening trace file: No such file or directory (2)
12-06 05:57:51.318: D/HttpAccess:constructor(857): User-Agent string: SalesforceMobileSDK/2.1.0 android mobile/4.2.2 (sdk) mobilapp/1.0 Hybrid
12-06 05:58:09.306: D/LockChecker:run(833): isLocked:true elapsedSinceLastActivity:20 timeout:0
My json.config file looks like this
{
"remoteAccessConsumerKey": "3MVG9Iu66FKeHhINkB1l7xt7kR8czFcCTUhgoA8Ol2Ltf1eYHOU4SqQRSEitYFDUpqRWcoQ2.dBv_a1Dyu5xa",
"oauthRedirectURI": "testsfdc:///mobilesdk/detect/oauth/done",
"oauthScopes": ["web", "api"],
"isLocal": false,
"startPage": "helloWorld",
"errorPage": "error.html",
"shouldAuthenticate": true,
"attemptOfflineLoad": false,
"androidPushNotificationClientId": ""
}
Please help me to resolve this error

I had the same problem. You need to set manifestmerger.enabled=true in your project.properties in order to merge the manifest file from salesforceSDK.
The AuthenticatorService from that manifest fixes the problem.

Phonegap Android facebook plugin crashes

I am getting the error below when I try to login through facebook plugin for Android.
The app basically crashes "stopped", Any ideas will be appreciated.
ERROR/AndroidRuntime(2008): FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to resume activity {xxx/com.facebook.LoginActivity}: android.content.res.Resources$NotFoundException: String resource ID #0x7f060012
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2742)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2771)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2235)
at android.app.ActivityThread.access$600(ActivityThread.java:141)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5039)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.content.res.Resources$NotFoundException: String resource ID #0x7f060012
at android.content.res.Resources.getText(Resources.java:230)
at android.content.res.Resources.getString(Resources.java:314)
at android.content.Context.getString(Context.java:327)
at com.facebook.widget.WebDialog.onCreate(WebDialog.java:189)
at android.app.Dialog.dispatchOnCreate(Dialog.java:355)
at android.app.Dialog.show(Dialog.java:260)
at com.facebook.AuthorizationClient$WebViewAuthHandler.tryAuthorize(AuthorizationClient.java:471)
at com.facebook.AuthorizationClient.tryCurrentHandler(AuthorizationClient.java:214)
at com.facebook.AuthorizationClient.tryNextHandler(AuthorizationClient.java:193)
at com.facebook.AuthorizationClient.authorize(AuthorizationClient.java:121)
at com.facebook.AuthorizationClient.startOrContinueAuth(AuthorizationClient.java:102)
at com.facebook.LoginActivity.onResume(LoginActivity.java:113)
at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1185)
at android.app.Activity.performResume(Activity.java:5182)
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2732)
... 12 more

i kinda resolved it, i deleted the app_id string. turns out facebook plugin doesn't use that.