caja crashed with SIGABRT in g_assertion_message()

[aaronfranke]

I received two of these errors just when starting up my computer. See image. Not shown is the "CurrentDesktop" field which says "MATE", just confirming that the crash happened while in MATE.

This occured after attempting to log out of the MATE desktop (since I wanted to switch back to XFCE) and then the MATE desktop's theme changed to my system default of Greybird and then hanged without allowing me to log out. I then tried to log into the Ctrl+Alt+F1 TTY session but that froze on me too. So, I held the power button and booted up and got these errors.

System info:

Description: Ubuntu 16.04 LTS
Release: 16.04

mate-panel:
  Installed: 1.14.0-1~xenial1.01
  Candidate: 1.14.0-1~xenial1.01
  Version table:
 *** 1.14.0-1~xenial1.01 500
        500 http://ppa.launchpad.net/ubuntu-mate-dev/xenial-mate/ubuntu xenial/main amd64 Packages
        100 /var/lib/dpkg/status
     1.12.2-1 500
        500 http://us.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages

[aaronfranke (arnfranke)]

This may be useful - I got a more descriptive error from another program with the same problem:

GLib-GIO:ERROR:/build/glib2.0-7IO_Yw/glib2.0-2.48.1/./gio/glocalfilemonitor.c:433:g_file_monitor_source_handle_event: code should not be reached

in the output when running PCManFM from the Terminal and reproducing this bug. Full output:

aaronfranke@aaron-xub16desk:~$ pcmanfm
** Message: x-terminal-emulator has very limited support, consider choose another terminal

** (pcmanfm:26132): WARNING **: XDG_TEMPLATES_DIR is set to invalid path, ignoring it
**
GLib-GIO:ERROR:/build/glib2.0-7IO_Yw/glib2.0-2.48.1/./gio/glocalfilemonitor.c:433:g_file_monitor_source_handle_event: code should not be reached
Aborted (core dumped)
aaronfranke@aaron-xub16desk:~$

So, I think that this error may have something to do with GLib/GTK