Comment 41 for bug 1236749

Same as Pietrek B #39

gnome-session[3692]: WARNING: App 'gnome-shell.desktop' exited with code 1
gnome-session[3692]: WARNING: App 'gnome-shell.desktop' respawning too quickly
gnome-session[3692]: WARNING: Could not get session class: No such file or directory
gnome-session[3692]: CRITICAL: We failed, but the fail whale is dead. Sorry....

Was also running 13.10 with gnome3 and gnome-staging PPAs. Now I'm back to my stable Gnome Shell 3.8.4

I really don't think this is caused by a buggy extension as Tim states in #38.

My bet is on GDM and/or some weird timing issue.