10-24 07:05:23.881: E/AndroidRuntime(1151): FATAL EXCEPTION: main
10-24 07:05:23.881: E/AndroidRuntime(1151): java.lang.IllegalStateException: Could not execute method of the activity
10-24 07:05:23.881: E/AndroidRuntime(1151): at android.view.View$1.onClick(View.java:3633)
10-24 07:05:23.881: E/AndroidRuntime(1151): at android.view.View.performClick(View.java:4240)
10-24 07:05:23.881: E/AndroidRuntime(1151): at android.view.View$PerformClick.run(View.java:17721)
10-24 07:05:23.881: E/AndroidRuntime(1151): at android.os.Handler.handleCallback(Handler.java:730)
10-24 07:05:23.881: E/AndroidRuntime(1151): at android.os.Handler.dispatchMessage(Handler.java:92)
10-24 07:05:23.881: E/AndroidRuntime(1151): at android.os.Looper.loop(Looper.java:137)
10-24 07:05:23.881: E/AndroidRuntime(1151): at android.app.ActivityThread.main(ActivityThread.java:5103)
10-24 07:05:23.881: E/AndroidRuntime(1151): at java.lang.reflect.Method.invokeNative(Native Method)
10-24 07:05:23.881: E/AndroidRuntime(1151): at java.lang.reflect.Method.invoke(Method.java:525)
10-24 07:05:23.881: E/AndroidRuntime(1151): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
10-24 07:05:23.881: E/AndroidRuntime(1151): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
10-24 07:05:23.881: E/AndroidRuntime(1151): at dalvik.system.NativeStart.main(Native Method)
10-24 07:05:23.881: E/AndroidRuntime(1151): Caused by: java.lang.reflect.InvocationTargetException
10-24 07:05:23.881: E/AndroidRuntime(1151): at java.lang.reflect.Method.invokeNative(Native Method)
10-24 07:05:23.881: E/AndroidRuntime(1151): at java.lang.reflect.Method.invoke(Method.java:525)
10-24 07:05:23.881: E/AndroidRuntime(1151): at android.view.View$1.onClick(View.java:3628)
10-24 07:05:23.881: E/AndroidRuntime(1151): ... 11 more
10-24 07:05:23.881: E/AndroidRuntime(1151): Caused by: java.lang.NullPointerException
10-24 07:05:23.881: E/AndroidRuntime(1151): at com.example.montest.Main.MultipleButton(Main.java:87)
10-24 07:05:23.881: E/AndroidRuntime(1151): ... 14 more
10-24 07:05:25.882: I/Process(1151): Sending signal. PID: 1151 SIG: 9
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