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 with only one html file in a project. For me it seems to have something to do with VPN that I was using to upload this html file to CRM system. Whenever it was on it seemed to "block" the file somehow. When I closed the window where I was uploading the html file I can save without any issues.