Could not load file or assembly Microsoft.CodeAnalysis

Question

I have a webproject I am trying to host, but when the server tries to compile it, I get the following error:

Unhandled Exception: System.IO.FileLoadE

Answer 1

I figured this out myself. To anyone reading this, the problem was that the Nuget package Microsoft.CodeDom.Providers.DotNetCompilerPlatform (which also contains the CodeAnalysis package) was the wrong version. I created a new webproject, updated the offending Nuget package right away, and the problem was solved.