VB to C# Conversion doesn't update other project references to .csproj

[ashhegde1]

Steps to reproduce

1. Create a solution of multiple projects and some of the projects being a VBPROJ and used by other projects.
2. Convert a VB project to csproj.
3. Conversion runs fine and shows a list of referenced projects will be changed and reloaded. Ok and reload
4. However in all the projects referencing this vbproj, the GUID is changed BUT not the project extension. it stays as vbproj and of course will give errors compiling.

Error message shown

• Follow the steps on the wiki - where do things go wrong?
• Copy and paste any error messages / relevant text and/or screenshot the incorrect behaviour.

If there's no error message, try the Visual Studio Activity log:

Run Visual Studio with the /Log command line switch to write ActivityLog.xml to disk during your session. After closing Visual Studio, find the activity log in the subfolder for Visual Studio data: %AppData%\Microsoft\VisualStudio<version>\ActivityLog.xml.

Details

• Product in use: e.g. icsharpcode.github.io/CodeConverter / VS extension / both
• Version in use: e.g. 5.6.3 or a commit hash (if it's a 3rd party tool using this library, try one of the above)
• Did you see it working in a previous version, which?
• Any other relevant information to the issue, or your interest in contributing a fix.