Cannot Debug SQL: Unable to start T-SQL Debugging. cocould not attach to SQL Server process on, t-sqldebugging

Cannot Debug SQL: Unable to start T-SQL Debugging. cocould not attach to SQL Server process on, t-sqldebugging
When SSMS debug SQL script is used today, an error is reported: Unable to start T-SQL Debugging. cocould not attach to SQL Server process on ---- think about the recent changes to the computer, except that the domain was created on the computer yesterday and then deleted. Think about the problem with your account. However, there are no results in the search of so many websites. I have no problem in the areas they suggest, but an error is reported.
Finally, the cause is discovered:This error is caused by the failure to log on to the Windows Account in SQL Server.Because I can log on to both the SQL account and Windows account, I find that I cannot log on to the Windows account. It's strange, so I deleted the Windows Account and added it again. This time I can log in. The problem is also solved.

SQL server 2008 r2 cannot start t-SQL debugging

Are you not authorized to execute SQL statements?
 
Can't create/write to file 'C: \ WINDOWS \ TEMP \ # SQL _610_0myd'

Is it the vista or window7 system you are using? You try to back up it to another place, such as the desktop. It may be a permission issue.