java.lang.RuntimeException

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    • java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.dim.myapplication/com.example.dim.myapplication.Create_Apointment}: java.lang.NullPointerException at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1894) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1995) at android.app.ActivityThread.access$600(ActivityThread.java:128) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1161) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:4517) 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:993) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:760) at dalvik.system.NativeStart.main(Native Method) Caused by: java.lang.NullPointerException at android.support.v7.app.AppCompatDelegateImplBase.<init>(AppCompatDelegateImplBase.java:68) at android.support.v7.app.AppCompatDelegateImplV7.<init>(AppCompatDelegateImplV7.java:145) at android.support.v7.app.AppCompatDelegateImplV11.<init>(AppCompatDelegateImplV11.java:28) at android.support.v7.app.AppCompatDelegateImplV14.<init>(AppCompatDelegateImplV14.java:41) at android.support.v7.app.AppCompatDelegate.create(AppCompatDelegate.java:188) at android.support.v7.app.AppCompatDelegate.create(AppCompatDelegate.java:170) at android.support.v7.app.AppCompatActivity.getDelegate(AppCompatActivity.java:502) at android.support.v7.app.AppCompatActivity.findViewById(AppCompatActivity.java:174) at com.example.dim.myapplication.Create_Apointment.<init>(Create_Apointment.java:13) at java.lang.Class.newInstanceImpl(Native Method) at java.lang.Class.newInstance(Class.java:1319) at android.app.Instrumentation.newActivity(Instrumentation.java:1027) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1885)

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