Hello i need help on SQL 2012, im currently reading Beginning SQL Server for Developers 3rd Edition. Im stuck at maintenance!
Im trying to Execute a Maintenance Plan, im on page 314, while i try to execute my plan i get this following error message:

" Execution failed. See the maintenance plan and SQL Server Agent job history logs for details.
Additional information:
Job 'ApressFinancial Main Maintenance.Subplan_1'failed.(SqlManagerUI) "


any idea what i can do to fix this?