This exception indicates a failed attempt to access a method.

public class MethodAccessException : MemberAccessException {
// Public Constructors
   public MethodAccessException( );
   public MethodAccessException(string message);
   public MethodAccessException(string message, Exception inner);
// Protected Constructors
   protected MethodAccessException(System.Runtime.Serialization.SerializationInfo info,
        System.Runtime.Serialization.StreamingContext context);
}

Hierarchy

Object Exception(System.Runtime.Serialization.ISerializable) SystemException MemberAccessException MethodAccessException