Attempt to invoke virtual method '' on a null object reference
49
What is a NullPointerException, and how do I fix it?
8283
Why does null reference print as "null"
134010
Can Visual Studio tell me which reference threw a NullReferenceException?
63521
How to pass a nullable type to a P/invoked function
128903
ExecuteScalar throws NullReferenceException
46944
Null pointer Exception - findViewById()
5082
How do I use reflection to call a generic method?
35590
How to fix NullPointerException in Java?
101471
Unit testing void methods?
96046
Static fields on a null reference in Java
95
Calling virtual functions inside constructors
45196
Calling class method through NULL class pointer
115292
virtual function calls in constructor and destructor
127452
Why is typeof null "object"?
54938
Cannot invoke method or retrieve property from null object. Object returned by the following call stack is null. \"File\r\n\"
138823
Why cast null to Object?
114816
Is null reference possible?