Using Linux Mint 14, 64bit.
Recently I did a fair bit of customization of the MATE panel, adding a second panel and a whole bunch of applets, including an applet that I wrote myself. (For all I know it could be doing something broken, but that doesn't seem to excuse the problems I'm having.)
Now mate-panel doesn't load upon rebooting my system. When I load it manually from a terminal, I get:
(mate-panel:4425): MateComponent-Activation-CRITICAL **: matecomponent_activation_query: assertion `ac != NULL' failed
Things I've tried:
rm -r ~/.config/mate
I notice that /apps/panel in mateconf-editor still seems to be populated with information that seems to come from my old setup. So I tried
mateconftool-2 --recursive-unset /apps/panel
But it doesn't appear to have changed anything at all in mateconf-editor, so I dunno.
According to the thread at viewtopic.php?f=206&t=122459 I should try to remove the directory "~/.mateconf/apps/panel". This did not exist when I looked.