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Important This document may not represent best practices for current development, links to downloads and other resources may no longer be valid. Current recommended version can be found here.

Reference required to assembly '<assemblyname>' containing the definition for event '<eventname>' 

Reference required to assembly '<assemblyname>' containing the definition for event '<eventname>'. Add a reference to your project.

The event is defined in a dynamic-link library (DLL) or assembly that is not directly referenced in your project. The Visual Basic compiler requires a reference to avoid ambiguity in case the event is defined in more than one DLL or assembly.

Error ID: BC30005

To correct this error

  • Include the name of the unreferenced DLL or assembly in your project references.

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