NullPointerException : findViewById(int) on a null object reference

[vidhipatel94]

Fatal Exception: java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.View android.view.View.findViewById(int)' on a null object reference at com.appeaser.sublimepickerlibrary.datepicker.DayPickerView.onLayout(DayPickerView.java:280) at android.view.View.layout(View.java:15686) at android.view.ViewGroup.layout(ViewGroup.java:5114) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579) at android.widget.FrameLayout.onLayout(FrameLayout.java:514) at android.view.View.layout(View.java:15686) at android.view.ViewGroup.layout(ViewGroup.java:5114) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703) at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1557) at android.widget.LinearLayout.onLayout(LinearLayout.java:1466) at android.view.View.layout(View.java:15686) at android.view.ViewGroup.layout(ViewGroup.java:5114) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579) at android.widget.FrameLayout.onLayout(FrameLayout.java:514) at android.view.View.layout(View.java:15686) at android.view.ViewGroup.layout(ViewGroup.java:5114) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703) at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1557) at android.widget.LinearLayout.onLayout(LinearLayout.java:1466) at android.view.View.layout(View.java:15686) at android.view.ViewGroup.layout(ViewGroup.java:5114) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579) at android.widget.FrameLayout.onLayout(FrameLayout.java:514) at android.view.View.layout(View.java:15686) at android.view.ViewGroup.layout(ViewGroup.java:5114) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579) at android.widget.FrameLayout.onLayout(FrameLayout.java:514) at android.view.View.layout(View.java:15686) at android.view.ViewGroup.layout(ViewGroup.java:5114) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703) at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1557) at android.widget.LinearLayout.onLayout(LinearLayout.java:1466) at android.view.View.layout(View.java:15686) at android.view.ViewGroup.layout(ViewGroup.java:5114) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579) at android.widget.FrameLayout.onLayout(FrameLayout.java:514) at android.view.View.layout(View.java:15686) at android.view.ViewGroup.layout(ViewGroup.java:5114) at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2086) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1843) at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1061) at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5895) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:767) at android.view.Choreographer.doCallbacks(Choreographer.java:580) at android.view.Choreographer.doFrame(Choreographer.java:550) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753) at android.os.Handler.handleCallback(Handler.java:739) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5358) at java.lang.reflect.Method.invoke(Method.java) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:952) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:747)

[ankitbatra11]

Did you manage to get it fixed? I am also facing the same issue but only in release version of my app with proguard enabled.

[deinlandel]

Try to add the following to your proguard rules:

#sublime picker
-keepnames class com.appeaser.sublimepickerlibrary.datepicker.** {
    <fields>;
    <methods>;
}