BC30560: 'Application' is ambiguous in the namespace 'Inventor' - in new version of Visual Studio (17.14.12)

[suzanne_philip]

I Recently upgraded from version 17.6 of Visual Studio to 17.14.12 and my code is giving the error BC30560: 'Application' is ambiguous in the namespace 'Inventor' - this code previously worked fine. Any advice would be appreciated.

Code where error occurs:

Dim InvApp As Inventor.Application

Thank you