Error Code Sheep may occur when players attempt to join a Fireteam
in which any member has not updated to the latest version of Destiny. To
resolve this issue, please close and restart Destiny to initiate your
If your console fails to update your
Destiny application automatically, you may need to initiate the update
manually. For more information on updating Destiny manually, please see: Updating Destiny Guide
If all players in your Fireteam are playing the latest version of Destiny, please try to resume your activity.