We have an ASP.Net MVC application running on 2 production IIS servers. There is no problem with the build or deployment. Randomly (once every few weeks), one server will start giving compilation errors saying it can't find a DLL in ASP.Net temporary files (see screenshot).
Clearing the asp.net temp files folder fixes the error, but I can't figure out why it occurs. It's not a disk space issue, there is plenty of space.