How to fix this classnotfound exception in Android?

Question

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.access2200ドル(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>
...

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Answer 1

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>

Answer 2

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"