NoClassDefFoundError在沒有外部罐子的android

Question

我今天才開始在android應用程序中，所以我沒有添加任何罐子。如果有幫助，我目前使用sdk和adt r19。 Android清單看起來像

<application 
    android:icon="@drawable/ic_launcher" 
    android:label="@string/app_name" > 
    <activity 
     android:name=".LoginActivity" > 
     <intent-filter> 
      <action android:name="android.intent.action.MAIN" /> 
      <category android:name="android.intent.category.LAUNCHER" /> 
     </intent-filter> 
    </activity> 
    <activity 
     android:name=".UserHome"></activity> 
</application> 

它是如何發生的：

btnLogin.setOnClickListener(new OnClickListener(){ 
public void onClick(View arg0){ 
     Intent mapIntent = new Intent(LoginActivity.this, UserHome.class); 
     LoginActivity.this.startActivity(mapIntent); 
     Log.i("Intent", "Login to UserHome"); 
    } 
}); 

我無能，爲什麼發生這種情況。

編輯

錯誤日誌

07-13 06:14:06.844: E/AndroidRuntime(442): FATAL EXCEPTION: main 
07-13 06:14:06.844: E/AndroidRuntime(442): java.lang.NoClassDefFoundError: com.srd.application.UserHome 
07-13 06:14:06.844: E/AndroidRuntime(442): at com.srd.application.LoginActivity$1.onClick(LoginActivity.java:70) 
07-13 06:14:06.844: E/AndroidRuntime(442): at android.view.View.performClick(View.java:2408) 
07-13 06:14:06.844: E/AndroidRuntime(442): at android.view.View.onKeyUp(View.java:4121) 
07-13 06:14:06.844: E/AndroidRuntime(442): at android.widget.TextView.onKeyUp(TextView.java:4431) 
07-13 06:14:06.844: E/AndroidRuntime(442): at android.view.KeyEvent.dispatch(KeyEvent.java:1061) 
07-13 06:14:06.844: E/AndroidRuntime(442): at android.view.View.dispatchKeyEvent(View.java:3740) 
07-13 06:14:06.844: E/AndroidRuntime(442): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:788) 
07-13 06:14:06.844: E/AndroidRuntime(442): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:788) 
07-13 06:14:06.844: E/AndroidRuntime(442): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:788) 
07-13 06:14:06.844: E/AndroidRuntime(442): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:788) 
07-13 06:14:06.844: E/AndroidRuntime(442): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchKeyEvent(PhoneWindow.java:1667) 
07-13 06:14:06.844: E/AndroidRuntime(442): at com.android.internal.policy.impl.PhoneWindow.superDispatchKeyEvent(PhoneWindow.java:1102) 
07-13 06:14:06.844: E/AndroidRuntime(442): at android.app.Activity.dispatchKeyEvent(Activity.java:2063) 
07-13 06:14:06.844: E/AndroidRuntime(442): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchKeyEvent(PhoneWindow.java:1643) 
07-13 06:14:06.844: E/AndroidRuntime(442): at android.view.ViewRoot.deliverKeyEventToViewHierarchy(ViewRoot.java:2471) 
07-13 06:14:06.844: E/AndroidRuntime(442): at android.view.ViewRoot.handleFinishedEvent(ViewRoot.java:2441) 
07-13 06:14:06.844: E/AndroidRuntime(442): at android.view.ViewRoot.handleMessage(ViewRoot.java:1735) 
07-13 06:14:06.844: E/AndroidRuntime(442): at android.os.Handler.dispatchMessage(Handler.java:99) 
07-13 06:14:06.844: E/AndroidRuntime(442): at android.os.Looper.loop(Looper.java:123) 
07-13 06:14:06.844: E/AndroidRuntime(442): at android.app.ActivityThread.main(ActivityThread.java:4627) 
07-13 06:14:06.844: E/AndroidRuntime(442): at java.lang.reflect.Method.invokeNative(Native Method) 
07-13 06:14:06.844: E/AndroidRuntime(442): at java.lang.reflect.Method.invoke(Method.java:521) 
07-13 06:14:06.844: E/AndroidRuntime(442): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 
07-13 06:14:06.844: E/AndroidRuntime(442): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 
07-13 06:14:06.844: E/AndroidRuntime(442): at dalvik.system.NativeStart.main(Native Method) 

Answer 1

你有沒有定義的應用程序的清單文件使用庫標籤？

<uses-library android:name="com.google.android.maps" /> 

一樣，

<application 
    android:icon="@drawable/ic_launcher" 
    android:label="@string/app_name" > 

    <uses-library android:name="com.google.android.maps" /> 

    . 
    . 
    . 
</application> 

還要檢查您的應用程序包含Google-api不Android。