error coding (Object reference not set to an instance of an object)
289
What is a NullReferenceException, and how do I fix it?
95648
TypeError: 'list' object is not callable while trying to access a list
84144
'Operation is not valid due to the current state of the object' error during postback
3648
this class is not key value coding-compliant for the key XXXXXX
78212
[__NSCFDictionary objectAtIndex:]: unrecognized selector sent to instance
124365
what is wrong with this code it gives error
66284
NullPointerException when Creating an Array of objects
27280
"unrecognized selector sent to instance" error in Objective-C
34224
What is an "index out of range" exception, and how do I fix it?
84493
Can't set attributes on instance of "object" class
107423
After ExecuteScalar: Object reference not set etc
7935
CS0120: An object reference is required for the nonstatic field, method, or property 'foo'
147251
How do I fix the error where I cannot make a static reference to a non-static input field?
26632
Why am I getting objects printed twice?
89331
Variable does not exist in the current context?
94946
The method format(String, Object[]) in the type String is not applicable for the arguments (String, int, int)
139469
setValue:forUndefinedKey: this class is not key value coding-compliant for the key