I am running the generated project from dotnet script init, only adding a dependency.

I've seen some scripts set the framework at the top but I assume this is correct as that is how it was generated for me. What can I do about these errors?

When I add the dependency I restart omnisharp, it recognises the dependency for a moment and then these errors appear.

This is on a Mac and the script runs fine I just don't know why vscode and omnisharp is having issues