Build error: “The process cannot access the file because it is being used by another process”

Question

I\'ve got a C# webforms app, that until today had been working just swimmingly.

Now today, all of a sudden, every time I try run the app, I get a file l

Answer 1

If this is an SSIS project, then open task manager and kill all instances of DtsDebugHost.exe, that should release the locked files.