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java.lang.NoClassDefFoundError: android.icu.util.Calendar*** at com.example.panwa.afinal.MainActivity.startAt10(MainActivity.java:70) at com.example.panwa.afinal.MainActivity$3.onClick(MainActivity.java:46) at android.view.View.performClick(View.java:4275) at android.view.View$PerformClick.run(View.java:17434) at android.os.Handler.handleCallback(Handler.java:615) at android.os.Handler.dispatchMessage(Handler.java:92) at android.os.Looper.loop(Looper.java:177) at android.app.ActivityThread.main(ActivityThread.java:4947) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:511) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1038) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:805) at dalvik.system.NativeStart.main(Native Method)