Hello.
This issue seems to be related to SQL Server. Could you please see following articles?
http://forum.dotnetpanel.com/forums/t/1897.aspxhttp://social.msdn.microsoft.com/Forums/en-US/msbuild/thread/aa9f90e8-534d-4e74-b656-99187eb3f281/In general, I would recommend you to google this error message, since it is general SQL error message. If you will not find help of proper forums,
1. Could you please restart your SQL server?
2. For the first time please do not use Windows Authentication but the mixed mode (sql login and password).
3. It this still not helps please try to set TCP/IP instead of shared memory and Named Pipes. It could be done in SQL Server Configuration Manager (SQL Native Client Configuration – Client Protocols).
Best Regards,
Radek Macalik