Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via com.tr by Unknown author, 1 year ago
Attempt to invoke virtual method 'android.view.Window$Callback android.view.Window.getCallback()' on a null object reference
via Stack Overflow by Rifat
, 1 year ago
Attempt to invoke virtual method 'android.view.Window$Callback android.view.Window.getCallback()' on a null object reference
via Stack Overflow by LeNomade
, 1 year ago
Attempt to invoke virtual method 'android.view.Window$Callback android.view.Window.getCallback()' on a null object reference
via Stack Overflow by BraveHeart
, 1 year ago
Attempt to invoke virtual method 'android.view.Window$Callback android.view.Window.getCallback()' on a null object reference
via Stack Overflow by sandesh
, 2 years ago
Attempt to invoke virtual method 'android.view.Window$Callback android.view.Window.getCallback()' on a null object reference
via Stack Overflow by Yasir Amin
, 1 year ago
Attempt to invoke virtual method 'android.view.Window$Callback android.view.Window.getCallback()' on a null object reference
java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.Window$Callback android.view.Window.getCallback()' on a null object reference	at android.support.v7.app.AppCompatDelegateImplBase.(AppCompatDelegateImplBase.java:68)	at android.support.v7.app.AppCompatDelegateImplV7.(AppCompatDelegateImplV7.java:145)	at android.support.v7.app.AppCompatDelegateImplV11.(AppCompatDelegateImplV11.java:28)	at android.support.v7.app.AppCompatDelegateImplV14.(AppCompatDelegateImplV14.java:41)	at android.support.v7.app.AppCompatDelegateImplV23.(AppCompatDelegateImplV23.java:29)	at android.support.v7.app.AppCompatDelegate.create(AppCompatDelegate.java:186)	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.genc.myapplication2.MainActivity.(MainActivity.java:26)	at java.lang.Class.newInstance(Native Method)	at android.app.Instrumentation.newActivity(Instrumentation.java:1067)	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2317)