Returns an error when trying to start up.

[David Overcash]

The error dialog says "The NetworkManager applet could not find some required resources. It cannot continue."

Console also returned a ton of identical lines saying

(nm-applet:5689): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

I am running ubuntu dapper beta, it worked perfectly fine on flight 6.

[Daniel Robitaille (robitaille)]

I had the same problem on my laptop when I installed Dapper Beta from scratch tonight. After installing network-manager I rebooted and that error started occuring.

But the error cleared up after I rebooted the laptop a 2nd time and now network-manager works correctly.

[Luka Renko (lure)]

This looks similar to bug 37128 - any message about icons?

[David Overcash (funnylookinhat)]

Now I don't get the error message anymore (after a few reboots) but nothing comes up at all. I try to run it from console and I get absolutely no output, it just sits there with a blinking cursor in console. Tried as sudo just for kicks, still nothing.

I'd say this bug is directly related to bug 37128 as referenced two comments earlier, though I didn't see it at first.
https://launchpad.net/bugs/37128

[Nicolò Chieffo (yelo3)]

yes, in my case it's a message about icons!
** (nm-applet:14889): WARNING **: Icon nm-no-connection missing: Icona «nm-no-connection» non presente nel tema

[Luka Renko (lure)]

Did you tried workaround mentioned there - you need to run:

gtk-update-icon-cache -f /usr/share/icons/hicolor/

[Nicolò Chieffo (yelo3)]

Yes, it fixed the problem, I think this bug is a duplicate!