Unable to save changes to files in Visual Studio 2013

Question

I have a Visual Studio 2013 solution that is under source control (TFS, Visual Studio Online). It is mapped to a local workspace, I have checked out some files (e.g. web.config,

Answer 1

I had the same problem and it was caused by "Backup and Sync from Google". After I’ve closed it everything went back to normal.

Answer 2

I tried all the suggestions here but none worked. Then, with the modified file open in Visual Studio, I navigated to the file on disk and deleted it. Then clicked build and the save file dialog no longer popped up. I was able to build and check in.