query: C# System.NullReferenceException {"Object reference not set to an instance of an object."}
positive_passages.docid: 289
positive_passages.text: What is a NullReferenceException, and how do I fix it?
negative_passages.docid: 20892
negative_passages.text: C# nullable string error
negative_passages.docid: 69771
negative_passages.text: NullPointerException when setting attribute?
negative_passages.docid: 60497
negative_passages.text: System.QueryException: List has more than 1 row for assignment to SObject
negative_passages.docid: 10581
negative_passages.text: Avoiding NullPointerException in Java
negative_passages.docid: 144658
negative_passages.text: System.NullPointerException: Attempt to de-reference a null object ,sravn
negative_passages.docid: 120739
negative_passages.text: Stack overflow exception in C# setter
negative_passages.docid: 79477
negative_passages.text: Why is "null" present in C# and Java?
negative_passages.docid: 88920
negative_passages.text: Is using NULL references OK?
negative_passages.docid: 64332
negative_passages.text: avoiding null reference exceptions
negative_passages.docid: 50046
negative_passages.text: java : non-static variable cannot be referenced from a static context Error
negative_passages.docid: 78238
negative_passages.text: Nullable type is not a nullable type?
negative_passages.docid: 138823
negative_passages.text: Why cast null to Object?
negative_passages.docid: 134689
negative_passages.text: Setting an object to null vs Dispose()
negative_passages.docid: 87728
negative_passages.text: ArgumentNullException or NullReferenceException from extension method?
negative_passages.docid: 93966
negative_passages.text: The ViewData item that has the key 'XXX' is of type 'System.Int32' but must be of type 'IEnumerable'
negative_passages.docid: 112328
negative_passages.text: Error: "an object reference is required for the non-static field, method or property..."