I am using VS 2015 community and MS Sql server 2014
Trying to learn on how to use Reporting Services with C# by this article:
Creating a heat map in Reporting Services
I have gone through these
"The specified report server url could not be found" error while deploying to reporting server
Deployment of SSRS 2012 From SSDT Fails - The specified report server URL could not be found
SSRS Express 2012 - The specified report server URL could not be found
and I still get the same popup "The specified report server url xxxxx could not be found...."
I have tried with: /reportserver. /reports, /reportserver_sqlserverexpress, /reports_sqlserverexpress inside of MS SQL server Reporting Services Config Manager and each time I have stopped and restarted MS sql server as well for each renaming.