我真的不知道如何解决Eclipse + Android SDK Project的运行时执行。
最低SDK目标是8（android 2.2），TargetSDKVersion是22（我认为是5.1）。
我认为项目“appcompat_v7”存在问题，但我不知道它是什么，昨天应用程序（在项目“Morphion”中）运行得像我想要的那样。 也是昨天我没有通知这个项目（appcompat_v7）被自动添加（但也许已经在这里，我只是不记得了）。
现在它就在这里，它会引起问题。
My Logcat显示我的这个，但eclipse不会在我的代码上显示错误。
提前致谢并致以最诚挚的问候，
04-06 20:01:38.272: I/dalvikvm(3810): Could not find method android.view.ViewGroup.onNestedScrollAccepted, referenced from method android.support.v7.internal.widget.ActionBarOverlayLayout.onNestedScrollAccepted
04-06 20:01:38.272: W/dalvikvm(3810): VFY: unable to resolve virtual method 12206: Landroid/view/ViewGroup;.onNestedScrollAccepted (Landroid/view/View;Landroid/view/View;I)V
04-06 20:01:38.272: D/dalvikvm(3810): VFY: replacing opcode 0x6f at 0x0000
04-06 20:01:38.272: I/dalvikvm(3810): Could not find method android.view.ViewGroup.onStopNestedScroll, referenced from method android.support.v7.internal.widget.ActionBarOverlayLayout.onStopNestedScroll
04-06 20:01:38.272: W/dalvikvm(3810): VFY: unable to resolve virtual method 12212: Landroid/view/ViewGroup;.onStopNestedScroll (Landroid/view/View;)V
04-06 20:01:38.272: D/dalvikvm(3810): VFY: replacing opcode 0x6f at 0x0000
04-06 20:01:38.272: I/dalvikvm(3810): Could not find method android.support.v7.internal.widget.ActionBarOverlayLayout.stopNestedScroll, referenced from method android.support.v7.internal.widget.ActionBarOverlayLayout.setHideOnContentScrollEnabled
04-06 20:01:38.272: W/dalvikvm(3810): VFY: unable to resolve virtual method 9777: Landroid/support/v7/internal/widget/ActionBarOverlayLayout;.stopNestedScroll ()V
04-06 20:01:38.272: D/dalvikvm(3810): VFY: replacing opcode 0x6e at 0x000e
04-06 20:01:38.282: I/dalvikvm(3810): Could not find method android.content.res.TypedArray.getChangingConfigurations, referenced from method android.support.v7.internal.widget.TintTypedArray.getChangingConfigurations
04-06 20:01:38.282: W/dalvikvm(3810): VFY: unable to resolve virtual method 392: Landroid/content/res/TypedArray;.getChangingConfigurations ()I
04-06 20:01:38.282: D/dalvikvm(3810): VFY: replacing opcode 0x6e at 0x0002
04-06 20:01:38.282: I/dalvikvm(3810): Could not find method android.content.res.TypedArray.getType, referenced from method android.support.v7.internal.widget.TintTypedArray.getType
04-06 20:01:38.282: W/dalvikvm(3810): VFY: unable to resolve virtual method 414: Landroid/content/res/TypedArray;.getType (I)I
04-06 20:01:38.282: D/dalvikvm(3810): VFY: replacing opcode 0x6e at 0x0002
04-06 20:01:38.292: I/dalvikvm(3810): Could not find method android.content.res.Resources.getDrawable, referenced from method android.support.v7.internal.widget.ResourcesWrapper.getDrawable
04-06 20:01:38.292: W/dalvikvm(3810): VFY: unable to resolve virtual method 355: Landroid/content/res/Resources;.getDrawable (ILandroid/content/res/Resources$Theme;)Landroid/graphics/drawable/Drawable;
04-06 20:01:38.292: D/dalvikvm(3810): VFY: replacing opcode 0x6e at 0x0002
04-06 20:01:38.292: I/dalvikvm(3810): Could not find method android.content.res.Resources.getDrawableForDensity, referenced from method android.support.v7.internal.widget.ResourcesWrapper.getDrawableForDensity
04-06 20:01:38.292: W/dalvikvm(3810): VFY: unable to resolve virtual method 357: Landroid/content/res/Resources;.getDrawableForDensity (IILandroid/content/res/Resources$Theme;)Landroid/graphics/drawable/Drawable;
04-06 20:01:38.292: D/dalvikvm(3810): VFY: replacing opcode 0x6e at 0x0002
04-06 20:01:38.352: D/AndroidRuntime(3810): Shutting down VM
04-06 20:01:38.352: W/dalvikvm(3810): threadid=1: thread exiting with uncaught exception (group=0x4153d8b0)
04-06 20:01:38.362: E/AndroidRuntime(3810): FATAL EXCEPTION: main
04-06 20:01:38.362: E/AndroidRuntime(3810): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.ppable.morphion/com.ppable.morphion.MainActivity}: java.lang.NullPointerException
04-06 20:01:38.362: E/AndroidRuntime(3810): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2266)
04-06 20:01:38.362: E/AndroidRuntime(3810): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2316)
04-06 20:01:38.362: E/AndroidRuntime(3810): at android.app.ActivityThread.access$600(ActivityThread.java:150)
04-06 20:01:38.362: E/AndroidRuntime(3810): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1298)
04-06 20:01:38.362: E/AndroidRuntime(3810): at android.os.Handler.dispatchMessage(Handler.java:99)
04-06 20:01:38.362: E/AndroidRuntime(3810): at android.os.Looper.loop(Looper.java:213)
04-06 20:01:38.362: E/AndroidRuntime(3810): at android.app.ActivityThread.main(ActivityThread.java:5225)
04-06 20:01:38.362: E/AndroidRuntime(3810): at java.lang.reflect.Method.invokeNative(Native Method)
04-06 20:01:38.362: E/AndroidRuntime(3810): at java.lang.reflect.Method.invoke(Method.java:525)
04-06 20:01:38.362: E/AndroidRuntime(3810): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:741)
04-06 20:01:38.362: E/AndroidRuntime(3810): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:557)
04-06 20:01:38.362: E/AndroidRuntime(3810): at dalvik.system.NativeStart.main(Native Method)
04-06 20:01:38.362: E/AndroidRuntime(3810): Caused by: java.lang.NullPointerException
04-06 20:01:38.362: E/AndroidRuntime(3810): at com.ppable.morphion.MainActivity.bindEventsListenerOnButtons(MainActivity.java:46)
04-06 20:01:38.362: E/AndroidRuntime(3810): at com.ppable.morphion.MainActivity.onCreate(MainActivity.java:38)
04-06 20:01:38.362: E/AndroidRuntime(3810): at android.app.Activity.performCreate(Activity.java:5133)
04-06 20:01:38.362: E/AndroidRuntime(3810): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
04-06 20:01:38.362: E/AndroidRuntime(3810): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2230)
04-06 20:01:38.362: E/AndroidRuntime(3810): ... 11 more