Msg 574, Level 16, State 0, Line 1 CONFIG statement cannot be used inside a user transaction.

Problem:

I tried to see some advanced settings for the instance today and got an error message.

sp_configure 'show advanced',1

GO

RECONFIGURE;

Msg 574, Level 16, State 0, Line 1

CONFIG statement cannot be used inside a user transaction.

Reason:

I have a transaction open.

Solution: 

ROLLBACK