Question

我已经使用eclipse创建了一个Android应用程序，但是应用程序没有在AVD上运行，它说“不幸的是已停止工作”

Log cat消息如下 -

07-29 04:59:50.789: W/dalvikvm(784): threadid=1: thread exiting with uncaught exception (group=0x414c4700)
07-29 04:59:50.808: E/AndroidRuntime(784): FATAL EXCEPTION: main
07-29 04:59:50.808: E/AndroidRuntime(784): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.androidlove/com.example.androidlove.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "com.example.androidlove.MainActivity" on path: DexPathList[[zip file "/data/app/com.example.androidlove-1.apk"],nativeLibraryDirectories=[/data/app-lib/com.example.androidlove-1, /system/lib]]
07-29 04:59:50.808: E/AndroidRuntime(784):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2137)
07-29 04:59:50.808: E/AndroidRuntime(784):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2261)
07-29 04:59:50.808: E/AndroidRuntime(784):  at android.app.ActivityThread.access$600(ActivityThread.java:141)
07-29 04:59:50.808: E/AndroidRuntime(784):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
07-29 04:59:50.808: E/AndroidRuntime(784):  at android.os.Handler.dispatchMessage(Handler.java:99)
07-29 04:59:50.808: E/AndroidRuntime(784):  at android.os.Looper.loop(Looper.java:137)
07-29 04:59:50.808: E/AndroidRuntime(784):  at android.app.ActivityThread.main(ActivityThread.java:5103)
07-29 04:59:50.808: E/AndroidRuntime(784):  at java.lang.reflect.Method.invokeNative(Native Method)
07-29 04:59:50.808: E/AndroidRuntime(784):  at java.lang.reflect.Method.invoke(Method.java:525)
07-29 04:59:50.808: E/AndroidRuntime(784):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
07-29 04:59:50.808: E/AndroidRuntime(784):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
07-29 04:59:50.808: E/AndroidRuntime(784):  at dalvik.system.NativeStart.main(Native Method)
07-29 04:59:50.808: E/AndroidRuntime(784): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.example.androidlove.MainActivity" on path: DexPathList[[zip file "/data/app/com.example.androidlove-1.apk"],nativeLibraryDirectories=[/data/app-lib/com.example.androidlove-1, /system/lib]]
07-29 04:59:50.808: E/AndroidRuntime(784):  at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:53)
07-29 04:59:50.808: E/AndroidRuntime(784):  at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
07-29 04:59:50.808: E/AndroidRuntime(784):  at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
07-29 04:59:50.808: E/AndroidRuntime(784):  at android.app.Instrumentation.newActivity(Instrumentation.java:1061)
07-29 04:59:50.808: E/AndroidRuntime(784):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2128)
07-29 04:59:50.808: E/AndroidRuntime(784):  ... 11 more
07-29 04:59:58.399: I/Process(784): Sending signal. PID: 784 SIG: 9

请帮帮我，我厌倦了解决这个错误......

Answer 1

如果包是：com.example.android love-1

，请根据您的包名称在清单中添加mainActivity

   <activity
        android:name="com.example.androidlove-1.MainActivity" >
    </activity>

Answer 2

我遇到了同样的问题，我发现示例代码放在＆＃34; JAVA＆＃34;文件夹而不是＆＃34; src＆＃34;夹。将代码移动到src后，问题就解决了。

我希望有效。

Answer 3

您没有在manifest.xml中声明MainActivity类。

    <activity
        android:name=".MainActivity" >
    </activity>

运行android应用程序时出错

3 个答案: