How do I change the debug port in Visual Studio 2017?

Go into the .sln file and edit the port there.

For example, if it's currently on port: 50722

Then just do a replace: 50722 replace with: 50723 and it should build just fine. There should be about 5 spots it'll replace.

For me, I was able to find it with the following steps in Visual Studio 2017:

1. Right click on the web project, then click Properties.
2. Click on the Debug tab.
3. Under the Profile IIS Express, you will find the port at the App URL box.