ASP MVC Error Unable to connect to web server IIS Express

If you get the next error when trying to run your app from visual studio:

You can try different things to fix the problem

- Right click on your project, then select properties, click on the Debug section, assign a new port in the App URL direction

- In explorer go to the path \.vs\config and delete the applicationhost.config, then rebuild your project 

- Open the task manager and stop the IIS Express if is running so you can get a fresh instance