IIS Express - 500.19 Cannot read configuration file - because it's looking at the wrong path

Question

I recently renamed my root TFS folder from D:\\TFS\\systemstfs to D:\\TFS\\sys because one of the project\'s paths was too long for Windows. Now, when

Answer 1

Changing the port number on my MVC project resolved my issue. I went in circles for over an hour looking for an answer. Thank you Sonic Soul.

It always amazes me when one tiny tweak can fix something horribly broken.

I incremented the port number and the error magically resolved.

Project Properties > Web > Project Url 

Using Visual Studios 2015.