Metadata file 'Temp\Bin\Debug\Assembly-CSharp.dll' could not be found


I’ve run into this error when building in visual studio. I’m unsure what caused the problem. Using Unity 2019.4 and VS 2017. This is preventing the other classes from being built, so development can’t continue.

I’ve tried deleting various project files, and deleted the library files. Any ideas?


Deleting the .vs folder in the project files fixed the problem.