Upgraded project could not load file or assembly

[TehWardy]

Just upgraded my solution to .Net Core 3.1 and now i'm getting error ...

Could not load file or assembly 'Microsoft.CodeAnalysis, Version=3.4.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. The system cannot find the file specified.

... Directly adding a reference to the "missing" assembly doesn't resolve the issue.

From previous issues of this nature raised i've seen that updating VS (i'm running 2019) often helped / fixed the issue and running the latest SDK installer was also an option. None of these appeared to have worked for me.

I figured it might be some "rogue junk" so I flushed my nuget cache, deleted the entire repo from my HDD and then fetched the latest from source control and rebuilt but hit the same exception.

Any ideas what I could do next?

[TehWardy]

Weirdly, setting the project to build against .Net Core 2.2 again doesn't resolve it either.

[TehWardy]

Ok from what I can tell this is some issue in the azure functions stack of references.

[carlossanlop]

Seems the question was answered in the roslyn repo so I'll close this.