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Every time I start up my Natty + GNOME 3 install, which I installed from the gnome3-team PPA, I get a sad computer icon and a note saying that something bad has happened and I need to log out. I can log into unity on the same install, but I would like to get GNOME 3 working. Is anyone else having this problem? If not, does anyone know how I can troubleshoot this? The log file viewer comes up completely blank every time I open it.

UPDATE: Here's what I get when I try to run gnome-shell from a terminal: 

jon@jon-laptop:~$ gnome-shell --replace
    JS ERROR: !!!   Exception was: Error: Requiring NetworkManager, version none: Typelib file for namespace 'NetworkManager' (any version) not found
    JS ERROR: !!!     lineNumber = '0'
    JS ERROR: !!!     fileName = 'gjs_throw'
    JS ERROR: !!!     stack = '("Requiring NetworkManager, version none: Typelib file for namespace 'NetworkManager' (any version) not found")@gjs_throw:0
@/usr/share/gnome-shell/js/ui/status/network.js:8
'
    JS ERROR: !!!     message = 'Requiring NetworkManager, version none: Typelib file for namespace 'NetworkManager' (any version) not found'
      JS LOG: NMApplet is not supported. It is possible that your NetworkManager version is too old
Window manager warning: Log level 16: Unable to register authentication agent: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: An authentication agent already exists for the given subject
Window manager warning: Log level 16: Error registering polkit authentication agent: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: An authentication agent already exists for the given subject (polkit-error-quark 0)



GLib-GIO-ERROR **: Settings schema 'org.gnome.shell.extensions.user-theme' is not installed



aborting...
Aborted
jon@jon-laptop:~$ gnome-shell-calendar-server[2722]: Got HUP on stdin - exiting

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that ppa is very unstable and in order to properly use GONME3 you have to compile it – Uri Herrera May 17 '11 at 7:23
1  
You'll not be able to login into Unity since installing GNOME 3 from PPA will break it, try logging in to command line, and then attempt to run gnome-shell. – Kush May 17 '11 at 8:14
@Kush, but the problem is actually the opposite. Unity has always worked for me alongside gnome-shell (although with some theming problems), and it continues to work now, but it's gnome-shell that isn't working. – Jon May 17 '11 at 13:06
@Uri, I'm aware that the ppa is very unstable, but my question is whether anyone else is having this problem, because I suspect that it's just me (from what I can tell no one else has been having this critical issue for the past week). If it's just me, there's the chance I can figure out what's wrong and fix it, and maybe even learn something about it in the process. – Jon May 17 '11 at 13:08
1  
I got it working again by deleting the .local, .gconf and .gnome2 folders. – Jon May 22 '11 at 9:17
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closed as too localized by fossfreedom♦ Feb 23 at 21:47

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