"W: GPG error: http://ppa.launchpad.net precise InRelease: File /var/lib/apt/lists/partial/ppa.launchpad.net_raof_precise-colorhug_ubuntu_dists_precise_InRelease doesn't start with a clearsigned message" seems like a good thing, not the problem of this bug.
"W: GPG error: http:// ppa.launchpad. net precise InRelease: File /var/lib/ apt/lists/ partial/ ppa.launchpad. net_raof_ precise- colorhug_ ubuntu_ dists_precise_ InRelease doesn't start with a clearsigned message" seems like a good thing, not the problem of this bug.