Android，启动地图视图时出错

我有一个扩展MapActivity的mapview类。我使用的代码遵循Hello Map视图教程。Android，启动地图视图时出错

public void showMap() { 

     Intent myIntent = new Intent(MainActivity.this, googleMapsView.class); 
     MainActivity.this.startActivity(myIntent); 


    }

我遇到的问题是，当我启动地图视图的应用程序崩溃，我在日志猫收到以下错误：

地图活性利用下面的代码按下按钮启动

09-06 15:50:03.507: ERROR/AndroidRuntime(877): FATAL EXCEPTION: main 
09-06 15:50:03.507: ERROR/AndroidRuntime(877): java.lang.NoClassDefFoundError: com.android.googleMapsView 
09-06 15:50:03.507: ERROR/AndroidRuntime(877):  at com.android.MainActivity.showMap(MainActivity.java:832) 
09-06 15:50:03.507: ERROR/AndroidRuntime(877):  at com.android.MainActivity$3$2.onClick(MainActivity.java:262) 
09-06 15:50:03.507: ERROR/AndroidRuntime(877):  at android.view.View.performClick(View.java:3110) 
09-06 15:50:03.507: ERROR/AndroidRuntime(877):  at android.view.View$PerformClick.run(View.java:11934) 
09-06 15:50:03.507: ERROR/AndroidRuntime(877):  at android.os.Handler.handleCallback(Handler.java:587) 
09-06 15:50:03.507: ERROR/AndroidRuntime(877):  at android.os.Handler.dispatchMessage(Handler.java:92) 
09-06 15:50:03.507: ERROR/AndroidRuntime(877):  at android.os.Looper.loop(Looper.java:132) 
09-06 15:50:03.507: ERROR/AndroidRuntime(877):  at android.app.ActivityThread.main(ActivityThread.java:4123) 
09-06 15:50:03.507: ERROR/AndroidRuntime(877):  at java.lang.reflect.Method.invokeNative(Native Method) 
09-06 15:50:03.507: ERROR/AndroidRuntime(877):  at java.lang.reflect.Method.invoke(Method.java:491) 
09-06 15:50:03.507: ERROR/AndroidRuntime(877):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:841) 
09-06 15:50:03.507: ERROR/AndroidRuntime(877):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:599) 
09-06 15:50:03.507: ERROR/AndroidRuntime(877):  at dalvik.system.NativeStart.main(Native Method) 
09-06 15:50:03.507: ERROR/AndroidRuntime(877): Caused by: java.lang.IllegalAccessError: Class ref in pre-verified class resolved to unexpected implementation 
09-06 15:50:03.507: ERROR/AndroidRuntime(877):  at dalvik.system.DexFile.defineClass(Native Method) 
09-06 15:50:03.507: ERROR/AndroidRuntime(877):  at dalvik.system.DexFile.loadClassBinaryName(DexFile.java:207) 
09-06 15:50:03.507: ERROR/AndroidRuntime(877):  at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:211) 
09-06 15:50:03.507: ERROR/AndroidRuntime(877):  at java.lang.ClassLoader.loadClass(ClassLoader.java:540) 
09-06 15:50:03.507: ERROR/AndroidRuntime(877):  at java.lang.ClassLoader.loadClass(ClassLoader.java:500)

来源

2011-09-06 EI756

确保您已将Google API指定为项目构建目标。还请确保您在清单文件中包含以下行：

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

来源

2011-09-06 16:30:32

是的我已经选中了，仍然没有运气 – EI756

尝试清理项目并重新启动Eclipse。还要确保你没有两次导入jar库。 –

好吧，它加载了地图视图，但我可以看到的只是灰色框，它似乎没有加载实际地图 – EI756

Android，启动地图视图时出错

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