Contact the administrator for the SQL Server Reporting Services at {0} to confirm that the server is available on the network ...

Contact the administrator for the SQL Server Reporting Services at {0} 
to confirm that the server is available on the network and you have sufficient privileges to create a project. 
Also, you might find additional helpful information in the project creation log.
The log shows each action taken by the wizard at the time of the failure 
and may include additional details about the error.