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 Stack Overflow by Francesco Rizzi
, 1 year ago
Attempt to invoke virtual method 'boolean elektro_fr.my_android.ui.My_Fragment.isAdded()' on a null object reference
java.lang.NullPointerException: Attempt to invoke virtual method 'boolean elektro_fr.my_android.ui.My_Fragment.isAdded()' on a null object reference	at elektro_fr.my_android.ui.My_Activity.removeFragment(My_Activity.java:296)	at elektro_fr.newapplication.Compito.Fragment.MainActivity.clickButtonOperation(MainActivity.java:62)	at elektro_fr.newapplication.Compito.Fragment.Fragment_2.setGraphics(Fragment_2.java:35)	at elektro_fr.my_android.ui.My_Fragment.onCreateView(My_Fragment.java:66)	at android.support.v4.app.Fragment.performCreateView(Fragment.java:1974)