ReferenceManagerPackage fails to install, VS 2017 Community edition (unable to add reference)

CD C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\Common7\IDE\PublicAssemblies

Step 1: Launch Developer Command Prompt for VS 2017
Step 2: CD C:\Program Files\Microsoft Visual Studio\2017\Community\Common7\IDE\PublicAssemblies
Step 3: Run below command
gacutil -i Microsoft.VisualStudio.Shell.Interop.11.0.dll

You should now see
Assembly successfully added to the cache

Restart Visual Studio and hopefully all will be well and you can add references.