02-08 04:23:17.709: W/dalvikvm(205): Class resolved by unexpected DEX: LMy/Sandbox/GmapActivity;(0x44bfde50):0x120ac0 ref [Lcom/google/android/maps/MapActivity;] Lcom/google/android/maps/MapActivity;(0x44bfde50):0x120800
02-08 04:23:17.709: W/dalvikvm(205): (LMy/Sandbox/GmapActivity; had used a different Lcom/google/android/maps/MapActivity; during pre-verification)
02-08 04:23:17.709: W/dalvikvm(205): Unable to resolve superclass of LMy/Sandbox/GmapActivity; (77)
02-08 04:23:17.709: W/dalvikvm(205): Link of class 'LMy/Sandbox/GmapActivity;' failed
02-08 04:23:17.718: D/AndroidRuntime(205): Shutting down VM
02-08 04:23:17.718: W/dalvikvm(205): threadid=3: thread exiting with uncaught exception (group=0x4001b188)
02-08 04:23:17.718: E/AndroidRuntime(205): Uncaught handler: thread main exiting due to uncaught exception
02-08 04:23:17.759: E/AndroidRuntime(205): java.lang.NoClassDefFoundError: My.Sandbox.GmapActivity
02-08 04:23:17.759: E/AndroidRuntime(205):     at My.Sandbox.InsightActivity.onClick(InsightActivity.java:120)
02-08 04:23:17.759: E/AndroidRuntime(205):     at android.view.View.performClick(View.java:2364)
02-08 04:23:17.759: E/AndroidRuntime(205):     at android.view.View.onTouchEvent(View.java:4179)
02-08 04:23:17.759: E/AndroidRuntime(205):     at android.widget.TextView.onTouchEvent(TextView.java:6540)
02-08 04:23:17.759: E/AndroidRuntime(205):     at android.view.View.dispatchTouchEvent(View.java:3709)
02-08 04:23:17.759: E/AndroidRuntime(205):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
02-08 04:23:17.759: E/AndroidRuntime(205):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
02-08 04:23:17.759: E/AndroidRuntime(205):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
02-08 04:23:17.759: E/AndroidRuntime(205):     at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
02-08 04:23:17.759: E/AndroidRuntime(205):     at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1659)
02-08 04:23:17.759: E/AndroidRuntime(205):     at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1107)
02-08 04:23:17.759: E/AndroidRuntime(205):     at android.app.Activity.dispatchTouchEvent(Activity.java:2061)
02-08 04:23:17.759: E/AndroidRuntime(205):     at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1643)
02-08 04:23:17.759: E/AndroidRuntime(205):     at android.view.ViewRoot.handleMessage(ViewRoot.java:1691)
02-08 04:23:17.759: E/AndroidRuntime(205):     at android.os.Handler.dispatchMessage(Handler.java:99)
02-08 04:23:17.759: E/AndroidRuntime(205):     at android.os.Looper.loop(Looper.java:123)
02-08 04:23:17.759: E/AndroidRuntime(205):     at android.app.ActivityThread.main(ActivityThread.java:4363)
02-08 04:23:17.759: E/AndroidRuntime(205):     at java.lang.reflect.Method.invokeNative(Native Method)
02-08 04:23:17.759: E/AndroidRuntime(205):     at java.lang.reflect.Method.invoke(Method.java:521)
02-08 04:23:17.759: E/AndroidRuntime(205):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
02-08 04:23:17.759: E/AndroidRuntime(205):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
02-08 04:23:17.759: E/AndroidRuntime(205):     at dalvik.system.NativeStart.main(Native Method)
02-08 04:23:17.759: E/AndroidRuntime(205): Caused by: java.lang.IllegalAccessError: Class ref in pre-verified class resolved to unexpected implementation
02-08 04:23:17.759: E/AndroidRuntime(205):     at dalvik.system.DexFile.defineClass(Native Method)
02-08 04:23:17.759: E/AndroidRuntime(205):     at dalvik.system.DexFile.loadClassBinaryName(DexFile.java:209)
02-08 04:23:17.759: E/AndroidRuntime(205):     at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:203)
02-08 04:23:17.759: E/AndroidRuntime(205):     at java.lang.ClassLoader.loadClass(ClassLoader.java:573)
02-08 04:23:17.759: E/AndroidRuntime(205):     at java.lang.ClassLoader.loadClass(ClassLoader.java:532)
02-08 04:23:17.759: E/AndroidRuntime(205):     ... 22 more

我已经把Google API的jar都添加到build path，

manifest也添加了uses-library指令，

target也设置成了Google Inc.:Google APIs:7

结果运行时还是报上面的错

肿么回事?