Unable To Launch Web Server

Question

I have asp.net web application project in visual studio 2012. When I want to start it, I have the following error:

Unable to launch the IIS Express Web server: P

Answer 1

One solution is to delete or clear the history in your browser. Then, restart the Visual Studio and re-run your application.

If this solution doesn't work, then it's time for you to change the port number for your development server (IIS Express).

I hope it helps you.