'<typename>' in assembly '<assemblyname>' has been forwarded to itself and so is an unsupported type
An assembly uses the TypeForwardedToAttribute to forward one of its types to another assembly, but specifies the same type in the same assembly.
Type forwarding means reassigning the definition of a class, structure, interface, delegate, or enumeration to an assembly other than the one in which it was originally defined. It is often used in conjunction with code refactoring, by which you split an assembly into two or more assemblies or move code from one assembly to another.
Forwarding a type to itself results in circular forwarding. If another assembly attempted to access the forwarded type, it would go through endless forwarding without ever arriving at a type that had not been forwarded.
Error ID: BC31425
To correct this error
- Forward the type to a type in a different assembly, or do not forward it at all.
See Also
Tasks
How to: Add or Remove References in Visual Studio (Visual Basic)