How to solve “Microsoft Visual Studio (VS)” error “Unable to connect to the configured development Web server”

Question

PROBLEM

If you start using \"Microsoft Internet Information Services Express (IIS)\" from \"Microsoft Visual Studio (VS)\" you may get when you run

Answer 1

For me I tried a few of the above - run as administrator, check firewall.

For me it was the IIS Express configuration. A little bit of a "just get it working" fix without much investigation, but deleting the folder IIS Express is located under

C:\Users\UserName\Documents\iisexpress

Not sure what caused the issue for my VS2013 - but I am constantly flipping between VS2013 sites in IIS and IIS Express.

NOTE: When I forget to run VS2013 as Administrator, my Local IIS project gets inserted in the IIS Express applicationhost.config file, which fails to open the web project. Which is really frustrating.