NPE in onSuccess

[appschris]

Caused by java.lang.NullPointerException: Attempt to invoke interface method 'void br.com.packapps.retropicker.callback.CallbackPicker.onSuccess(android.graphics.Bitmap, java.lang.String)' on a null object reference at br.com.packapps.retropicker.fragments.RetroPickerFragment.executeActionResult(RetroPickerFragment.java:292) at br.com.packapps.retropicker.fragments.RetroPickerFragment.onActivityResult(RetroPickerFragment.java:277) at android.app.Activity.dispatchActivityResult(Activity.java:7802) at android.app.ActivityThread.deliverResults(ActivityThread.java:4929) at android.app.ActivityThread.performResumeActivity(ActivityThread.java:4269) at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:4330) at android.app.servertransaction.ResumeActivityItem.execute(ResumeActivityItem.java:51) at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:145) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:70) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2123) at android.os.Handler.dispatchMessage(Handler.java:109) at android.os.Looper.loop(Looper.java:207) at android.app.ActivityThread.main(ActivityThread.java:7470) at java.lang.reflect.Method.invoke(Method.java) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:524) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:958)

Any idea about that?

[santhosh-annam]

You might have used "compile" in build.gradle file. Replace with "implementation"

This worked for me. It's bit late response, but it works for others who have come here with same issue.