If you move your
ASP.NET 5 project to a new folder and run it, you might suddenly find yourself with a 500.19 error whilst IIS attempts to read your
web.config. What I noticed was that the folder that IIS was looking in for my
web.config was the old folder:
To resolve this, just restart Visual Studio even if you’ve only just opened Visual Studio fresh anyway. Don’t waste time fiddling around with a perfectly fine
I guess it is a teething problem with the latest version of IIS Express.