I am getting this error while clicking on option menu in navigation drawer?
49
What is a NullPointerException, and how do I fix it?
136768
this class is not key value coding-compliant for the key view
85150
Android Navigation Drawer Open On Activity Create
129309
Logcat error description : Button launch crashes app
103797
Android:android.view.ViewRoot$CalledFromWrongThreadException - How to solve the problem?
30348
how to solve callout error? You have uncommitted work pending. Please commit or rollback before calling out
56667
I encountered an 'errorUnknown graphics extension: .eps.'
71956
An error produced when using the caption package
107793
"An error occurred when reviewing this item"
35590
How to fix NullPointerException in Java?
41432
Ubuntu 20.10: There was an error creating a child procsess. fix
88384
NoSuchMethodError error for getActionBar() (API-8)
56132
"E:Malformed line 1 in source list /etc/apt/sources.list.d/medibuntu.list (type),"
127516
Android Studio: Where is the Compiler Error Output Window?
154517
Cannot bring up "Reference Chooser" window from Properties in Eclipse Android SDK
136970
Error occurred in deployment step 'Add Solution': Operation is not valid due to the current state of the object.?
14630
arXiv: "Option clash for package hyperref." when there are no options!