Package Manager / Package Cache Error when Upgrading Package Manager

Unity Engine
1

I’ve downloaded 2019.3.6.f1 (and same for all other versions) and when I try to import this Unity Asset (below) it asks to Upgrade the Package Manager before importing the assets. Once I do so, it creates this error: Library\PackageCache\com.unity.render-pipelines.core@7.2.1\Editor\ShaderGenerator\CSharpToHLSL.cs(277,36): error CS0115: ‘CSharpToHLSL.NamespaceVisitor.VisitTypeDeclaration(TypeDeclaration, object)’: no suitable method found to override

Unity Asset: https://assetstore.unity.com/packages/essentials/tutorial-projects/vr-beginner-the-escape-room-163264?_ga=2.43698028.898324906.1584798917-137770541.1553732265

This has been the closest thing I’ve found for a solution, but it seems to be outdated (2014): problem Namespace 'ICSharpCode.SharpZipLib.Core' not found, maybe you forget to add an assembly reference? (BCE0021)? - Questions & Answers - Unity Discussions

I have tried:

  • uninstalling the unity hub, and the unity versions, reinstalling and then trying again with no avail.

  • reset packages to defaults

  • installing the unity version outside of unity hub (direct download)

  • reimporting all assets

  • closing the project, deleting library, and letting the library recompile

*The real mystery is my co-worker was able to do all this just fine on his computer, while my computer continues to throw this error

Has anyone run into this, or have a solution?

2

Also running into this issue. I’ve yet to find a solution. Happened after I went from 2019.3.9 > 2019.3.10 and updated Hub today. So far I’ve rolled back to 2019.3.9, uninstalled and reinstalled LWRP from the package manager, deleted everything but assets, packages, and project settings.

I’ll see if I can figure it out, will report back if I find a solution.