Error upgrading from 10.2.500.32 to 11.2.300.6

Trying to setup the application server we are receiving this error:

SSRS - The SSRS Web Portal URL is not valid. We tried the ‘Charlie Fossey’ post but that did not work. Any idea how to troubleshoot this?

SSRS

Open “Report server configuration manager” and click on Web portal URL and in the “Virtual directory field”, remove the entry and type “Reports” again. Apply and try again.