ORA Database Error Messages ORA-13781: The tuning task does not exist August 24, 2015 mpbod ORA-13781: The tuning task does not exist Cause: The user attempted to access a tuning task that does not exist. Action: Verify the name of the tuning task and the name of the user and retry the operation. Back to previous menu Share this:Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pocket (Opens in new window)