My app crashes when run on AVD.
1)Did all the prescribed things by pushbots.
2)The jar file addition.
3)The extended class but no use.
my app crashes
THE ERROR LOG IS:
07-04 22:25:05.994: E/Trace(628): error opening trace file: No such file or directory (2)
07-04 22:25:06.152: D/AndroidRuntime(628): Shutting down VM
07-04 22:25:06.152: W/dalvikvm(628): threadid=1: thread exiting with uncaught exception (group=0x40a13300)
07-04 22:25:06.172: E/AndroidRuntime(628): FATAL EXCEPTION: main
07-04 22:25:06.172: E/AndroidRuntime(628): java.lang.RuntimeException: Unable to instantiate application com.csconnect: java.lang.ClassNotFoundException: com.csconnect
07-04 22:25:06.172: E/AndroidRuntime(628): at android.app.LoadedApk.makeApplication(LoadedApk.java:501)
07-04 22:25:06.172: E/AndroidRuntime(628): at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4124)
07-04 22:25:06.172: E/AndroidRuntime(628): at android.app.ActivityThread.access$1300(ActivityThread.java:130)
07-04 22:25:06.172: E/AndroidRuntime(628): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1255)
07-04 22:25:06.172: E/AndroidRuntime(628): at android.os.Handler.dispatchMessage(Handler.java:99)
07-04 22:25:06.172: E/AndroidRuntime(628): at android.os.Looper.loop(Looper.java:137)
07-04 22:25:06.172: E/AndroidRuntime(628): at android.app.ActivityThread.main(ActivityThread.java:4745)
07-04 22:25:06.172: E/AndroidRuntime(628): at java.lang.reflect.Method.invokeNative(Native Method)
07-04 22:25:06.172: E/AndroidRuntime(628): at java.lang.reflect.Method.invoke(Method.java:511)
07-04 22:25:06.172: E/AndroidRuntime(628): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
07-04 22:25:06.172: E/AndroidRuntime(628): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
07-04 22:25:06.172: E/AndroidRuntime(628): at dalvik.system.NativeStart.main(Native Method)
07-04 22:25:06.172: E/AndroidRuntime(628): Caused by: java.lang.ClassNotFoundException: com.csconnect
07-04 22:25:06.172: E/AndroidRuntime(628): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
07-04 22:25:06.172: E/AndroidRuntime(628): at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
07-04 22:25:06.172: E/AndroidRuntime(628): at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
07-04 22:25:06.172: E/AndroidRuntime(628): at android.app.Instrumentation.newApplication(Instrumentation.java:967)
07-04 22:25:06.172: E/AndroidRuntime(628): at android.app.LoadedApk.makeApplication(LoadedApk.java:496)
07-04 22:25:06.172: E/AndroidRuntime(628): ... 11 more
THE MANIFEST FILE IS:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.csconnect"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="20" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<!-- GCM requires a Google account. -->
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.DISABLE_KEYGUARD"/>
<permission android:name="com.csconnect.permission.C2D_MESSAGE"
android:protectionLevel="signature" />
<uses-permission android:name="com.csconnect.permission.C2D_MESSAGE" />
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:name="com.csconnect"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.csconnect.MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<intent-filter>
<action android:name="com.csconnect.MESSAGE" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity android:name="com.pushbots.push.PBMsg"/>
<activity android:name="com.pushbots.push.PBListener"/>
<receiver
android:name="com.google.android.gcm.GCMBroadcastReceiver"
android:permission="com.google.android.c2dm.permission.SEND" >
<intent-filter>
<!-- Receives the actual messages. -->
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
<!-- Receives the registration id. -->
<action android:name="com.google.android.c2dm.intent.REGISTRATION" />
<category android:name="com.csconnect" />
</intent-filter>
</receiver>
<receiver android:name="com.pushbots.push.MsgReceiver" />
<service android:name="com.pushbots.push.GCMIntentService" />
<service android:name="org.openudid.OpenUDID_service" >
<intent-filter>
<action android:name="org.openudid.GETUDID" />
</intent-filter>
</service>
<activity
android:name="com.csconnect.SecondActivity"
android:label="#string/title_activity_second" >
</activity>
<!-- GCM connects to Google Services. -->
</application>
</manifest>
THE MAINACTIVITY FILE IS:
package com.csconnect;
import com.pushbots.push.Pushbots;
import android.app.Activity;
public class MainActivity extends Activity {
public String PUSHBOTS_APPLICATION_ID = "---#the application ID#---";
public String SENDER_ID="-----#the sender ID-----#";
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Pushbots.init(this, SENDER_ID,PUSHBOTS_APPLICATION_ID);
Button inboxbutton = (Button) findViewById(R.id.button1);
inboxbutton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this , SecondActivity.class);
startActivity(intent);
}
});
}
}
The Wrong Way:
Right click main project, choose Properties -> Java Build Path -> Projects -> Add..., this add the Android library Project as a dependency project in Android main project's build path, this does not work. If all required Android-related resources are defined in main project, you will not get any error at compile time, but when run the application, you get the exception described in the question.
The Correct Way:
Right click main project, choose Properties -> Android, in the Library section, add your Android library project here. Check out official dev guide Referencing a library project. This should fix all your problem. Also note that you have to use relative path reference the actual Android library project, as stated in the Library Project - Development considerations.
I faced the same problem. I added the library in the correct way but had the same porblem. My solution was to update the android-support-v4.jar to android-support-v13.jar. Afterwards it worked perfect!!
Related
i am running one android application in which i am using ActionBar but from supported library for android 2.2
i have added two external jar file as a support libraries
android-support-v7-appcompact.jar
android-support-v13.jar
but when i run the sample in my device i getting following runtime error
java.lang.RuntimeException: Unable to instantiate activity
ComponentInfo{com.example.android.navigationdrawerexample/com.example.android.navigationdrawerexample.NavMainActivity}:
java.lang.ClassNotFoundException:
com.example.android.navigationdrawerexample.NavMainActivity in loader
dalvik.system.PathClassLoader[/data/app/com.example.android.navigationdrawerexample-1.apk]
at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2703)
at
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2797)
at android.app.ActivityThread.access$2300(ActivityThread.java:135)
at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:2132)
at android.os.Handler.dispatchMessage(Handler.java:99) at
android.os.Looper.loop(Looper.java:143) at
android.app.ActivityThread.main(ActivityThread.java:4914) at
java.lang.reflect.Method.invokeNative(Native Method) at
java.lang.reflect.Method.invoke(Method.java:521) at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) at
dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: com.example.android.navigationdrawerexample.NavMainActivity in loader dalvik.system.PathClassLoader[/data/app/com.example.android.navigationdrawerexample-1.apk]
at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243)
at java.lang.ClassLoader.loadClass(ClassLoader.java:573)
at java.lang.ClassLoader.loadClass(ClassLoader.java:532)
at android.app.Instrumentation.newActivity(Instrumentation.java:1033)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2695)
here is the menifest file content
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.android.navigationdrawerexample"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="7" />
<application
android:label="#string/app_name"
android:icon="#drawable/ic_launcher"
>
<activity android:name="NavMainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
</application>
</manifest>
order of jar files
You should not only look at errors but also at warnings (orange text color in eclipse logcat view). Dalvik class loading are often preceded by some interesting informations about why a class can't be loaded by the Dalvik, something like a super class not existing.
I get the following error from the emulator in Eclipse when I run an Android application...
"The application has stopped unexpectedly. Please try again"
There are no error icons appearing in the project folder in Eclipse. I have already tried...
Cleaning the Project
Android Tools > Fix Project Properties
Updating the Build Path
My Error Log is saying...
"java.lang.RuntimeException: Unable to instantiate activity ComponentInfo..."
The Error Log goes onto say...
"Caused by: java.lang.ClassNotFoundException..."
Just to note that I do not have a "Build.xml" file in my project folder but instead a "apktool.yml" if this makes any difference.
Any suggestions??
EDIT:
Here's the manifest file...
<?xml version="1.0" encoding="UTF-8"?>
<manifest android:versionCode="61" android:versionName="1.2.2" package="com.__.__"
xmlns:android="http://schemas.android.com/apk/res/android">
<uses-sdk android:minSdkVersion="10" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<application android:label="#string/app_name" android:icon="#drawable/ic_launcher">
<activity android:label="#string/app_name" android:name=".MTActivity" android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:label="#string/app_name" android:name=".RCActivity" android:screenOrientation="portrait" />
...
Errors generated LogCat...
E/AndroidRuntime(6220): FATAL EXCEPTION: main
E/AndroidRuntime(6220): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.ir.mtools/com.ir.mtools.MTActivity}: java.lang.ClassNotFoundException:
com.irtza.pulmtools.MTActivity in loader dalvik.system.PathClassLoader[/data/app/com.ir.mtools-1.apk]
E/AndroidRuntime(6220): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1573)
E/AndroidRuntime(6220): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667)
E/AndroidRuntime(6220): at android.app.ActivityThread.access$1500(ActivityThread.java:117)
E/AndroidRuntime(6220): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
E/AndroidRuntime(6220): at android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime(6220): at android.os.Looper.loop(Looper.java:130)
E/AndroidRuntime(6220): at android.app.ActivityThread.main(ActivityThread.java:3687)
E/AndroidRuntime(6220): at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime(6220): at java.lang.reflect.Method.invoke(Method.java:507)
E/AndroidRuntime(6220): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
E/AndroidRuntime(6220): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)
E/AndroidRuntime(6220): at dalvik.system.NativeStart.main(Native Method)
E/AndroidRuntime(6220): Caused by: java.lang.ClassNotFoundException: com.ir.mtools.MTActivity in loader dalvik.system.PathClassLoader[/data/app/com.ir.mtools-1.apk]
Whenever this happens it means your application has encountered a runtime exception, which means no errors will show up at compile time. In this case I'm guessing you have not declared the activity in the AndroidManifest.xml file, but without seeing more code that's only a guess.
java.lang.ClassNotFoundException: com.ir.mtools.MTActivity
Is com.ir.mtools.MTActivity this part of some library? if so have you included it in your build path ?
I have built an application for a large multicultural festival in my city that kicks off on Saturday. I've tweaked a lot of bugs in the iPhone version and we are waiting for Apple to approve it. I have taken that perfected version as the basis for the Android version.
The Android version looks and works great. I can run it on my Samsung Galaxy S II by either "Run as Android Application" in Eclipse or by uploading it to a server and downloading it into the phone. I can also email the app to myself and it works, too. I submitted it to the Google Play store and once it got into the wild (this is advertised on billboards, buses, everywhere) it crashes the minute it is opened.
I'm not really sure how to troubleshoot this when it works fine on the device before publication. I read about how it has to do with the MainActivity activity name, but everything looks like it lines up.
Error 1 [ClassNotFoundException in PathClassLoader.findClass()]:
java.lang.RuntimeException: Unable to instantiate activity
ComponentInfo{com.honestapi.folk2011/com.honestapi.folk2011.Folklorama}:
java.lang.ClassNotFoundException: com.honestapi.folk2011.Folklorama in loader
dalvik.system.PathClassLoader[/data/app/com.honestapi.folk2011-1.apk]
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1660)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1752)
at android.app.ActivityThread.access$1500(ActivityThread.java:123)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:993)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:126)
at android.app.ActivityThread.main(ActivityThread.java:3997)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:491)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:841)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:599)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: com.honestapi.folk2011.Folklorama in loader dalvik.system.PathClassLoader[/data/app/com.honestapi.folk2011-1.apk]
at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:251)
at java.lang.ClassLoader.loadClass(ClassLoader.java:548)
at java.lang.ClassLoader.loadClass(ClassLoader.java:508)
at android.app.Instrumentation.newActivity(Instrumentation.java:1022)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1651)
Error 2 [ClassNotFoundException in BaseDexClassLoader.findClass()]:
java.lang.RuntimeException: Unable to instantiate activity
ComponentInfo{com.honestapi.folk2011/com.honestapi.folk2011.Folklorama}:
java.lang.ClassNotFoundException: com.honestapi.folk2011.Folklorama
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1894)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1995)
at android.app.ActivityThread.access$600(ActivityThread.java:128)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1161)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4514)
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:980)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:747)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: com.honestapi.folk2011.Folklorama
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:1027)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1885)
Any help would be greatly appreciated! I am in quite the pickle.
Edit - Here is the AndroidManifest.xml from the bin folder
<uses-sdk android:minSdkVersion="8" android:targetSdkVersion="15" />
<supports-screens android:largeScreens="true" android:normalScreens="true" android:smallScreens="true" android:resizeable="false" android:anyDensity="true" />
<uses-permission android:name="android.permission.VIBRATE" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.BROADCAST_STICKY" />
<uses-permission android:name="android.permission.CAMERA" />
<application android:icon="#drawable/ic_launcher" android:label="#string/app_name" android:theme="#style/AppTheme">
<activity android:name=".MainActivity" android:label="#string/title_activity_main">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="com.google.zxing.client.android.CaptureActivity" android:screenOrientation="landscape" android:configChanges="orientation|keyboardHidden" android:theme="#android:style/Theme.NoTitleBar.Fullscreen" android:windowSoftInputMode="stateAlwaysHidden">
<intent-filter>
<action android:name="com.phonegap.plugins.barcodescanner.SCAN"/>
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activity>
<activity android:name="com.google.zxing.client.android.encode.EncodeActivity" android:label="#string/share_name">
<intent-filter>
<action android:name="com.phonegap.plugins.barcodescanner.ENCODE"/>
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activity>
</application>
</manifest>
It turned out my main Java file was named "MainActivity.java" but it was being called as "Folklorama.java" throughout the project files. I renamed the file to Folklorama.java.
I got the stack trace below in the Android developer account. There is just one occurrence of this error.
java.lang.RuntimeException: Unable to instantiate application com.mysite.myapp.TestApplication: java.lang.ClassNotFoundException: com.mysite.myapp.TestApplication in loader dalvik.system.PathClassLoader[/data/app-private/com.mysite.myapp-2.apk]
at android.app.LoadedApk.makeApplication(LoadedApk.java:466)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:3268)
at android.app.ActivityThread.access$2200(ActivityThread.java:117)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:973)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:130)
at android.app.ActivityThread.main(ActivityThread.java:3691)
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:912)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:670)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: com.myapp.myapp.TestApplication in loader dalvik.system.PathClassLoader[/data/app-private/com.mysite.myapp-2.apk]
at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at android.app.Instrumentation.newApplication(Instrumentation.java:945)
at android.app.LoadedApk.makeApplication(LoadedApk.java:461)
... 11 more
In my manifest file, I have declared com.mysite.myapp.TestApplication.
My Manifest file looks like this:
<application
android:name="com.mysite.myapp.TestApplication"
android:icon="#drawable/app_icon"
android:label="#string/app_name"
android:theme="#style/Theme.myapp" >
<activity
android:name="com.mysite.myapp.ActivityDashboard"
android:configChanges="orientation|keyboard"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
...
If your main home page is ActivityDashboard.java
insert as below or if TestApplication.java
replace .ActivityDashboard as .TestApplication in the activity tag
<package name="com.mysite.myapp"
<application
android:name="TestApplication"
android:icon="#drawable/app_icon"
android:label="#string/app_name"
android:theme="#style/Theme.myapp" >
<activity android:name=".ActivityDashboard" android:configChanges="orientation|keyboard"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
......
</application>
android:name="com.mysite.myapp.ActivityDashboard"
Replace thr above in your manifest with the below.
android:name=".ActivityDashboard"
Alternatively:
android:name="com.mysite.myapp.TestApplication.ActivityDashboard"
I have an app with ~11k active installs for which I sometimes receive ClassNotFoundExceptions that I can't explain. They look like this:
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{name.of.my.MainActivityClass}: java.lang.ClassNotFoundException: name.of.my.MainActivityClass in loader dalvik.system.PathClassLoader[/mnt/asec/name.of.my-2/pkg.apk]
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1743)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1851)
at android.app.ActivityThread.access$1500(ActivityThread.java:132)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1038)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:150)
at android.app.ActivityThread.main(ActivityThread.java:4293)
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:849)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:607)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: name.of.my.MainActivityClass in loader dalvik.system.PathClassLoader[/mnt/asec/name.of.my-2/pkg.apk]
at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at android.app.Instrumentation.newActivity(Instrumentation.java:1040)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1735)
... 11 more
I received some of these exceptions from users that updated my app (not only for the most recent version), so I think it is not a problem that is specific to some phones as the app worked for them before.
I got these exception reports for my main activity class, a receiver class and a BackupAgent class.
All of those classes are always instantiated directly from Android. My Manifest file looks like this:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="name.of.my"
android:versionCode="20"
android:versionName="1.10.2"
android:installLocation="auto">
<uses-sdk android:minSdkVersion="4" android:targetSdkVersion="8" />
<application android:icon="#drawable/icon" android:label="#string/app_name" android:backupAgent="name.of.my.OwnBackupAgent">
<activity android:name="name.of.my.MainActivityClass"
android:label="#string/app_name"
android:theme="#style/MyTheme">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name="name.of.my.OwnReceiver">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<intent-filter>
<action android:name="android.media.RINGER_MODE_CHANGED" />
</intent-filter>
</receiver>
</application>
</manifest>
After searching the net for some hours, the most likely explanations I found are:
it might be related to moving the app to SD card while there are still some services running (but the android dev guide says that all services are canceled in this case, and it doesn't explain why my main activity class suddenly can't be found anymore)
the .apk might be corrupted after updating via the android market. Could this be true? If yes, what can I do against it - if not, what else might be the problem?