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Delegate class '<classname>' has no Invoke method, so an expression of this type cannot be the target of a method call 

A call to Invoke through a delegate has failed because Invoke is not implemented on the delegate class.

Error ID: BC30220

To correct this error

  1. Ensure that an instance of the delegate class has been created with a Dim statement and that a procedure has been assigned to the delegate instance with the AddressOf operator.

  2. Locate the code that implements the delegate class and make sure it implements the Invoke procedure.

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