This exception indicates an attempt to access a nonexistent method.

public class MissingMethodException : MissingMemberException {
// Public Constructors
   public MissingMethodException( );
   public MissingMethodException(string message);
   public MissingMethodException(string message, Exception inner);
   public MissingMethodException(string className, string methodName);
// Protected Constructors
   protected MissingMethodException(System.Runtime.Serialization.SerializationInfo info,
        System.Runtime.Serialization.StreamingContext context);
// Public Instance Properties
   public override string Message{get; } 
// overrides MissingMemberException
}

Hierarchy

Object Exception(System.Runtime.Serialization.ISerializable) SystemException MemberAccessException MissingMemberException MissingMethodException