In my application I have three PNG file that I use as the background of the activity, placed in the folder drawable-nodpi, but the application crashes on tablet Samsung Galaxy Tab 2 10.1, that i used for test and gives me this error:
LogCat:
E/AndroidRuntime(4846): FATAL EXCEPTION: main
E/AndroidRuntime(4846): java.lang.RuntimeException: Unable to start activity ComponentInfo{it.bisemanuDEV.mathTools/it.bisemanuDEV.mathTools.MainActivity}: java.lang.NullPointerException
E/AndroidRuntime(4846): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2097)
E/AndroidRuntime(4846): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2122)
E/AndroidRuntime(4846): at android.app.ActivityThread.access$600(ActivityThread.java:140)
E/AndroidRuntime(4846): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1228)
E/AndroidRuntime(4846): at android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime(4846): at android.os.Looper.loop(Looper.java:137)
E/AndroidRuntime(4846): at android.app.ActivityThread.main(ActivityThread.java:4895)
E/AndroidRuntime(4846): at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime(4846): at java.lang.reflect.Method.invoke(Method.java:511)
E/AndroidRuntime(4846): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:994)
E/AndroidRuntime(4846): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:761)
E/AndroidRuntime(4846): at dalvik.system.NativeStart.main(Native Method)
E/AndroidRuntime(4846): Caused by: java.lang.NullPointerException
E/AndroidRuntime(4846): at it.bisemanuDEV.mathTools.MainActivity.onCreate(MainActivity.java:53)
E/AndroidRuntime(4846): at android.app.Activity.performCreate(Activity.java:5163)
E/AndroidRuntime(4846): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1094)
E/AndroidRuntime(4846): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2061)
But the application works on different models of smartphones.
What could be the problem?
You've got a NullPointerException:
Caused by: java.lang.NullPointerException
E/AndroidRuntime(4846): at it.bisemanuDEV.mathTools.MainActivity.onCreate(MainActivity.java:53)
so look at that line 53 to find out what's wrong.
Related
Sometime a received report from my user about this crash issue.
I cannot reproduce it with my device. It happen at the first time launch app and this is the stack trace from crash reporter:
Fatal Exception: java.lang.RuntimeException: Unable to resume activity {com.my.app.package.name/com.my.app.package.name.activity.Dispatcher}: java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=65538, result=0, data=null} to activity {com.my.app.package.name/com.my.app.package.name.activity.Dispatcher}: java.lang.NullPointerException
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2613)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2641)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2127)
at android.app.ActivityThread.access$600(ActivityThread.java:140)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1228)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4895)
at java.lang.reflect.Method.invokeNative(Method.java)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:994)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:761)
at dalvik.system.NativeStart.main(NativeStart.java)
Caused by java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=65538, result=0, data=null} to activity {com.my.app.package.name/com.my.app.package.name.activity.Dispatcher}: java.lang.NullPointerException
at android.app.ActivityThread.deliverResults(ActivityThread.java:3179)
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2600)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2641)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2127)
at android.app.ActivityThread.access$600(ActivityThread.java:140)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1228)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4895)
at java.lang.reflect.Method.invokeNative(Method.java)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:994)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:761)
at dalvik.system.NativeStart.main(NativeStart.java)
Caused by java.lang.NullPointerException
at com.google.android.gms.internal.zznu.onCreate(Unknown Source)
at com.google.android.gms.internal.zzpc.onActivityResult(Unknown Source)
at android.support.v4.app.FragmentActivity.onActivityResult(FragmentActivity.java:175)
at android.app.Activity.dispatchActivityResult(Activity.java:5347)
at android.app.ActivityThread.deliverResults(ActivityThread.java:3175)
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2600)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2641)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2127)
at android.app.ActivityThread.access$600(ActivityThread.java:140)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1228)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4895)
at java.lang.reflect.Method.invokeNative(Method.java)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:994)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:761)
at dalvik.system.NativeStart.main(NativeStart.java)
Any one can help me with this?
I get a project from other developer to fix minor issues in app, when I'm running my app on device I'm getting an error:
15142-15142/com.etripconcept E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.NoClassDefFoundError: com.crashlytics.android.answers.Answers
at com.crashlytics.android.Crashlytics.<init>(Crashlytics.java:224)
at com.crashlytics.android.Crashlytics.<init>(Crashlytics.java:207)
at com.crashlytics.android.Crashlytics.<init>(Crashlytics.java:202)
at com.etripconcept.SplashScreenActivity.onCreate(SplashScreenActivity.java:16)
at android.app.Activity.performCreate(Activity.java:5163)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1094)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2061)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2122)
at android.app.ActivityThread.access$600(ActivityThread.java:140)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1228)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4895)
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:994)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:761)
at dalvik.system.NativeStart.main(Native Method)
I'm new in Android development, so it may be stupid question, but Google doesn't say anything about it. I use Android Studio 1.2.2 on Win 8.1
My App crash rarely
i want to get off this bug for ever.
this is the log that users Report
i tried so long on this but nothing helps
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.xxx.xxx/com.xxx.xxx.Master_}: java.lang.NullPointerException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2072)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2097)
at android.app.ActivityThread.access$600(ActivityThread.java:136)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1207)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4787)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:556)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at com.xxx.xxx.HomeFragment.onActivityCreated(HomeFragment.java:140)
at android.support.v4.app.Fragment.performActivityCreated(Fragment.java:1508)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:958)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1115)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1097)
at android.support.v4.app.FragmentManagerImpl.dispatchActivityCreated(FragmentManager.java:1895)
at android.support.v4.app.FragmentActivity.onStart(FragmentActivity.java:566)
at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1163)
at android.app.Activity.performStart(Activity.java:5018)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2045)
... 11 more
My application normally working fine without any crashes. In some case(Don't know the scenario) my application crash. The logcat shows the error Resources$NotFoundException . This resource is the:
setContentView(R.layout.practise_menu);
Have any idea about this scenario? When it is possible to crash like this?
My Logcat error is
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.x.y/com.x.y}: android.content.res.Resources$NotFoundException: Resource ID #0x7f030032
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2097)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2122)
at android.app.ActivityThread.access$600(ActivityThread.java:140)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1228)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4895)
at java.lang.reflect.Method.invokeNative(Method.java)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:994)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:761)
at dalvik.system.NativeStart.main(NativeStart.java)
Caused by: android.content.res.Resources$NotFoundException: Resource ID #0x7f030032
at android.content.res.Resources.getValue(Resources.java:1026)
at android.content.res.Resources.loadXmlResourceParser(Resources.java:2131)
at android.content.res.Resources.getLayout(Resources.java:865)
at android.view.LayoutInflater.inflate(LayoutInflater.java:394)
at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:306)
at android.app.Activity.setContentView(Activity.java:1912)
at com.x.y.onCreate(Practitioner_menu.java:749)
at android.app.Activity.performCreate(Activity.java:5163)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1094)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2061)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2122)
at android.app.ActivityThread.access$600(ActivityThread.java:140)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1228)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4895)
at java.lang.reflect.Method.invokeNative(Method.java)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:994)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:761)
at dalvik.system.NativeStart.main(NativeStart.java)
I got this error report from crashlytics. Please help me to find out.
there is issue of the layout resolution,i have faced these kind of issue many times, better create folder structure as given bellow
layout-large
layout-small
layout-medium
I found the issue:
I just created different folders for landscape and portrait
e.g ->
layout-land
layout-port
But in Androidmanifest file i set the orientation as landscape.
Once i call intent for this activity and press power button and rotate the screen app crash and got this exception.
I don't know what is happening but i guess when the screen rotating it searches the xml file in layout-land and layout-port.
Please help to understand strange application behaviour.
In almost all devices in production everything is OK, I'm using ACRA to collect crash reports. But here is what I've got from Alpha GTR device:
ComponentInfo{com.xxxxxxxxxxx /com.xxxxxxxxxxx.xxxxActivity}: java.lang.ClassNotFoundException: com.xxxxxxxxxxx.xxxxActivity
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2108)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2211)
at android.app.ActivityThread.access$600(ActivityThread.java:149)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1300)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:153)
at android.app.ActivityThread.main(ActivityThread.java:4987)
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:821)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:584)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: com.xxxxxxxxxxx.xxxxActivity
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
at android.app.Instrumentation.newActivity(Instrumentation.java:1053)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2099)
... 11 more
java.lang.ClassNotFoundException: com.xxxxxxxxxxx.xxxxActivity
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
at android.app.Instrumentation.newActivity(Instrumentation.java:1053)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2099)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2211)
at android.app.ActivityThread.access$600(ActivityThread.java:149)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1300)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:153)
at android.app.ActivityThread.main(ActivityThread.java:4987)
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:821)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:584)
at dalvik.system.NativeStart.main(Native Method)
So application failed to start with strange exception. I've already checked SO questions about it, and just adding libraries as Unable to instantiate activity... Caused by ClassNotFoundException doesn't help here.
Could it be some device-specific exception? My app uses Camera, Google Maps and GPS.
Maybe you have to check if GPS or Camera are supported by the device first?
LocationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);