Android Студия: ClassNotFoundException

я был занят с моим приложением в течение недели, когда вдруг:Android Студия: ClassNotFoundException

11-12 07:59:17.860 1653-1653/nl.test.myapp E/AndroidRuntime﹕ FATAL EXCEPTION: main 
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{nl.test.MyApp/nl.test.MyApp.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "nl.test.myapp.MainActivity" on path: DexPathList[[zip file "/data/app/nl.test.myapp-2.apk"],nativeLibraryDirectories=[/data/app-lib/nl.test.myapp-2, /system/lib]] 
     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2137) 
     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2261) 
     at android.app.ActivityThread.access$600(ActivityThread.java:141) 
     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256) 
     at android.os.Handler.dispatchMessage(Handler.java:99) 
     at android.os.Looper.loop(Looper.java:137) 
     at android.app.ActivityThread.main(ActivityThread.java:5103) 
     at java.lang.reflect.Method.invokeNative(Native Method) 
     at java.lang.reflect.Method.invoke(Method.java:525) 
     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737) 
     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 
     at dalvik.system.NativeStart.main(Native Method) 
Caused by: java.lang.ClassNotFoundException: Didn't find class "nl.test.myapp.MainActivity" on path: DexPathList[[zip file "/data/app/nl.test.MyApp-2.apk"],nativeLibraryDirectories=[/data/app-lib/nl.test.MyApp-2, /system/lib]] 
     at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:53) 
     at java.lang.ClassLoader.loadClass(ClassLoader.java:501) 
     at java.lang.ClassLoader.loadClass(ClassLoader.java:461) 
     at android.app.Instrumentation.newActivity(Instrumentation.java:1061) 
     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2128) 
     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2261) 
     at android.app.ActivityThread.access$600(ActivityThread.java:141) 
     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256) 
     at android.os.Handler.dispatchMessage(Handler.java:99) 
     at android.os.Looper.loop(Looper.java:137) 
     at android.app.ActivityThread.main(ActivityThread.java:5103) 
     at java.lang.reflect.Method.invokeNative(Native Method) 
     at java.lang.reflect.Method.invoke(Method.java:525) 
     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737) 
     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 
     at dalvik.system.NativeStart.main(Native Method)

вот мой AndroidManifest.xml:

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
    package="nl.test.myapp" 
    android:versionCode="1" 
    android:versionName="1.0" > 

    <uses-sdk 
     android:minSdkVersion="7" 
     android:targetSdkVersion="19" /> 

    <uses-permission android:name="android.permission.INTERNET" /> 

    <application 
     android:allowBackup="true" 
     android:icon="@drawable/ic_launcher" 
     android:label="@string/app_name" 
     android:theme="@style/AppTheme" > 
     <activity 
      android:name="nl.test.myapp.MainActivity" 
      android:label="@string/app_name" > 
      <intent-filter> 
       <action android:name="android.intent.action.MAIN" /> 
       <category android:name="android.intent.category.LAUNCHER" /> 
      </intent-filter> 
     </activity> 

     <activity android:name=".welcomewizard.WelcomeWizardIntroPage" 
      android:label="@string/app_name" /> 

     <activity android:name=".welcomewizard.WelcomeWizardPage1" 
      android:label="@string/app_name" /> 

     <activity android:name=".welcomewizard.WelcomeWizardPage2" 
      android:label="@string/app_name" /> 

     <activity android:name=".welcomewizard.WelcomeWizardPage3" 
      android:label="@string/app_name" /> 

     <activity android:name=".welcomewizard.WelcomeWizardPage4" 
      android:label="@string/app_name" /> 

     <activity android:name=".welcomewizard.WelcomeWizardFinishPage" 
      android:label="@string/app_name" /> 

     <activity android:name=".CompanySelectorActivity" 
      android:label="@string/compsel_actionbarlabel" /> 
    </application> 

</manifest>

это происходит после того, как некоторые проблемы с моим R.java (id для просмотров, где некорректно), после восстановления проекта эта проблема произошла

Я уже пробовал Invalidate Cashes/restart в меню File IDE

Update 14:51: это мой compiler.xml файл:

<?xml version="1.0" encoding="UTF-8"?> 
<project version="4"> 
    <component name="CompilerConfiguration"> 
    <option name="DEFAULT_COMPILER" value="Javac" /> 
    <resourceExtensions /> 
    <wildcardResourcePatterns> 
     <entry name="!?*.java" /> 
     <entry name="!?*.form" /> 
     <entry name="!?*.class" /> 
     <entry name="!?*.groovy" /> 
     <entry name="!?*.scala" /> 
     <entry name="!?*.flex" /> 
     <entry name="!?*.kt" /> 
     <entry name="!?*.clj" /> 
    </wildcardResourcePatterns> 
    <annotationProcessing> 
     <profile default="true" name="Default" enabled="false"> 
     <processorPath useClasspath="true" /> 
     </profile> 
    </annotationProcessing> 
    </component> 
</project>

Мой файл MainActivity.java (\ SRC \ главная \ Java \ п \ тест \ MyApp \ MainActivity.java) :

package nl.test.myapp; 

import android.annotation.TargetApi; 
import android.content.Intent; 
import android.os.Build; 
import android.os.Bundle; 
import android.support.v7.app.ActionBarActivity; 
import android.view.Menu; 
import android.widget.RelativeLayout; 

import nl.test.myapp.welcomewizard.WelcomeWizardIntroPage; 

public class MainActivity extends ActionBarActivity { 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 

     setBackground(R.drawable.background_grey); 

     Intent intent = new Intent(this, WelcomeWizardIntroPage.class); 
     startActivity(intent); 
     finish(); 
    } 


    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 

     // Inflate the menu; this adds items to the action bar if it is present. 
     getMenuInflater().inflate(R.menu.main, menu); 
     return true; 
    } 

    @TargetApi(Build.VERSION_CODES.JELLY_BEAN) 
    private void setBackground(int drawable){ 
     int currentApiVersion = android.os.Build.VERSION.SDK_INT; 
     if(currentApiVersion >= android.os.Build.VERSION_CODES.JELLY_BEAN){ 
      RelativeLayout layout = (RelativeLayout) findViewById(R.id.layout_main); 
      layout.setBackground(getResources().getDrawable(drawable)); 
     } 
    } 
}

Android Студия: ClassNotFoundException

ответ

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