Devart Forums

Hi everybody...

I am having issues trying to open the .efml diagram in VS 2017 after upgrading to the latest version of VS 2017. I get the following message:

Unable to cast COM object of type 'System.__ComObject' to interface type 'Microsoft.VisualStudio.Shell.Interop.IVsAggregatableProject'. The operation failed because the QueryInterface call on the COM component for the interface with IID '{FFB2E715-7312-4B93-83D7-D37BCC561C90}' failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE)).


I tried uninstalling the entity developer product (6.2.205), cleaning up all entries I could find of the devart product manually and after restart (with VS turned off) trying a fresh installation of the latest ED version (6.3.555) but the final result was the same error message.

I tried the same upgrade in another machine with the same version of VS and ED and the result was the same as well.

Any help will be appreciated.

Hi.

I have the same issue. - I have updated to 15.8.1 and the issue is also reproduceable here.

I have tried to reinstall devart and visual studio, but this did not fix the error.

I have found if I open the .lqml in the Entity Developer application and after that "Run custom tool", I am able to make changes despit the problem.

Regards

jorgeivancho wrote: ↑Thu 16 Aug 2018 16:16Unable to cast COM object of type 'System.__ComObject' to interface type 'Microsoft.VisualStudio.Shell.Interop.IVsAggregatableProject'. The operation failed because the QueryInterface call on the COM component for the interface with IID '{FFB2E715-7312-4B93-83D7-D37BCC561C90}' failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE)).

We have reproduced the error trying to open the existing model in .NET Core project after VS 2017 upgrade to v15.8. We will notify you when the bug is fixed.

The bug with creating and opening the model in .NET Core project after VS 2017 upgrade to v15.8 is fixed: viewtopic.php?f=32&t=37634.

In VS 2017 15.8.0 and Entity Developer 6.3.569 I have still the same problem...

Unable to cast COM object of type 'System.__ComObject' to interface type 'VSLangProj.VSProject'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{2CFB826F-F6BF-480D-A546-95A0381CC411}' failed due to the following error:

How fix that?

We cannot reproduce the issue with Entity Developer v6.3.569.

Please contact us and provide the following:
1) navigate to VS2017 > Help > About, press Copy Info and give us this information
2) send us a simple test project and specify the steps to follow for reproducing

I can confirm that after upgrading my devart entity developer to 6.3.582 and running VS 15.8.4 I can get the entity developer diagram to open in VS again and code generation working as well with no issues.

Thanks for the fix.

I am also having this issue but still didn't find the solution.

@wisheszone, please upgrade to Entity Developer v6.3.606.

If this doesn't help, contact us and provide the following:
1) navigate to VS2017 > Help > About, press Copy Info and give us this information
2) send us a simple test project and specify the steps to follow for reproducing