systemd hibernate desktop-initial failed service

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https://bbs.archlinux.org – i was reading the wiki how to hibernate, and i got this but i dont understand any of what this is saying why i couldnt hibernate, can someone explain is easier terms whats wrong, or how i can fix the strange issue.[larry@Archlinux ~]$ sudo systemctl hibernateA dependency job for hibernate.target failed. See 'journalctl -xn' for details.[larry@Archlinux ~]$ journalctl -xnShowing user generated messages only. Users in the group 'adm' can see all messages. Pass -q to turn this notice off.-- Logs begin at Wed 2013-01-23 01:24:20 EST, end at Wed 2013-01-23 09:45:12 EST. --Jan 23 (HowTos)