OOP crashes with unrecoverable error after installing FxCop analyzers VSIX and NuGet

[mavasani]

Version Used: VS2017 Version 15.5.0 RTW

Steps to Reproduce:

1. Install the below FxCop analyzers VSIX: <%internal_build_drops%>\Roslyn\RoslynAnalyzers\20171213.3\VSSetup\Microsoft.CodeAnalysis.FxCopAnalyzers.Setup.vsix
2. Create a new C#/VB class library project and verify analyzers run fine
3. Install the latest analyzer beta2 NuGet package: https://www.nuget.org/packages/Microsoft.CodeAnalysis.FxCopAnalyzers/2.6.0-beta2

Expected Behavior:
VS de-dupes the analyzers from VSIX and NuGet and runs from any one source.

Actual Behavior:
I get the below gold bar for unrecoverable VS error:

4. Close and re-open VS and open the same solution

Actual Behavior:
You again get the same gold bar. Only uninstalling the NuGet will avoid the OOP crash.

[mavasani]

Fixed now.

[alfredmyers]

Still happening on:

• Visual Studio 15.5.3
• Microsoft.CodeAnalysis.FxCopAnalyzers 2.6.0
• VSIX 2.6.0.6241303

[heejaechang]

15.5.3 doesn't have fix yet.
The fix should be in 15.6 preview3 onwards