Attempt to invoke virtual method 'void com.parse.ParseFile.getDataInBackground(com.parse.GetDataCallback)' on a null object reference
49
What is a NullPointerException, and how do I fix it?
1816
Non-static variable cannot be referenced from a static context
73285
Null Pointer Exception in XMl Parsing
18250
What could cause java.lang.reflect.InvocationTargetException?
98866
Null Pointer Exception on getGraphics()
134010
Can Visual Studio tell me which reference threw a NullReferenceException?
146476
Java: Why aren't NullPointerExceptions called NullReferenceExceptions?
45196
Calling class method through NULL class pointer
96046
Static fields on a null reference in Java
46944
Null pointer Exception - findViewById()
7935
CS0120: An object reference is required for the nonstatic field, method, or property 'foo'
64332
avoiding null reference exceptions
29404
What does "Incompatible types: void cannot be converted to ..." mean?
128903
ExecuteScalar throws NullReferenceException
140595
Using getResources() in non-activity class
133310
Why isn't there a getContentView() method for Activity?
114049
IllegalMonitorStateException in code