Attempt to invoke virtual method 'java.lang.Class java.lang.Object.getClass()' on a null object reference IN MainActivity.NavigationItemSelected
49
What is a NullPointerException, and how do I fix it?
97325
DialogFragment causing nullpointer crash
156773
What is the difference between a.getClass() and A.class in Java?
80631
NullPointerException but compiling?
10581
Avoiding NullPointerException in Java
138775
Map not loading when using getLegend and showing error for getView()
73309
Type.GetType("namespace.a.b.ClassName") returns null
81565
getClass().getResource() always returning null
88384
NoSuchMethodError error for getActionBar() (API-8)
68787
Why The constructor ArrayAdapter(new View.OnKeyListener(){}, int, String[]) is undefined
9683
How to use GetSObject to retrieve related data in a null safe manner?
11458
NullReferenceException in Unity
33103
How come invoking a (static) method on a null reference doesn't throw NullPointerException?
289
What is a NullReferenceException, and how do I fix it?
118254
java.io.InvalidClassException: local class incompatible:
48221
Solving "The ObjectContext instance has been disposed and can no longer be used for operations that require a connection" InvalidOperationException
112328
Error: "an object reference is required for the non-static field, method or property..."