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VisualStudioWorkspace.GetHierarchy returns a "bad" reference. #323

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kfertitta opened this issue Apr 9, 2019 · 0 comments
Open

VisualStudioWorkspace.GetHierarchy returns a "bad" reference. #323

kfertitta opened this issue Apr 9, 2019 · 0 comments

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@kfertitta
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kfertitta commented Apr 9, 2019 •
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For (at least) .NET Core projects, the IVsHierarchy returned from VisualStudioWorkspace.GetHierarchy is not the same as that retrieved using the classic shell interfaces -- specifically, by calling IVsSolution.GetProjectOfUniqueName. Comparing the two RCW instances (after properly normalizing them by calling QI for IUnknown on each), shows they are not the same.

The IVsHierarchy retrieved from the workspace does not work in at least some scenarios. In particular, calling IVsSolution.GetGuidOfProject fails with E_FAIL.
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