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Object reference not set to an instance of an object is a common error in programming that occurs when code tries to access or use an object that hasn’t been initialized or created.

Object Reference Not Set to an Instance of an Object

This error indicates an attempt to reference a non-existent object, leading to a program failure during execution. It often stems from overlooking the creation of variables or objects in the application’s logic.

Null Reference Exception

In similar scenarios, this relates to situations where developers must ensure all objects are properly instantiated before use, preventing unexpected crashes in web applications.