Unable to cast COM object of type 'System._ComObject'

[redwards510]

I get the following error when right clicking on a DbContext class when trying to generate the diagram.

Unable to cast COM object of type 'System._ComObject' to interface type 'Microsoft.VisualStudio.Shell.lnterop.lVsAggregatableProject'
This operation failed because the Querylnterface call on the COM component for the interface with IID
'{FFB2E715-7312-4B93-83D7-D37BCC561 C90}' failed due to the following error:
No such interface supported (Exception from HRESULT: ox80004002 (E_NOINTERFACE)).

My .Net Core 2.0 EF class looks like

public class AffilDataContext : DbContext

Sometimes the error is different!

https://i.imgur.com/usLF6Kb.png

Any ideas? Running as admin makes no difference.

[ajopjo]

not supported for .NET core. I'll work on the .NET core support