Visual Studio 2012 Project has been modified outside environment prompt

Question

I have a solution that contains multiple projects, one of which is a website. Every time I open the solution, VS complains that the website project has been modified outside of the environment. I've tried deleting the .suo file as suggested in the linked question, and that fixes it for the next time I open the solution, but after that I get the prompt every time again.

There is a similar question here, but the suggestions there don't work for me.

Answer 1

Is your solution placed on a mapped network drive?

Solution: Move your project/solution to a local drive.

I had a similar problem and opening it from my local drive is what worked for me.