Article 5EDXT cannot register existing type 'NMAgentManagerError'

cannot register existing type 'NMAgentManagerError'

by
mfoley
from LinuxQuestions.org on (#5EDXT)
I am trying to run VirtualBox on Slackware-Current. I get the following error:
Code:(process:2376): GLib-GObject-WARNING **: 13:08:17.558: cannot register existing type 'NMAgentManagerError'

(process:2376): GLib-CRITICAL **: 13:08:17.558: g_once_init_leave: assertion 'result != 0' failed

(process:2376): GLib-GObject-WARNING **: 13:08:17.558: cannot retrieve class for invalid (unclassed) type '<invalid>'
Segmentation faultWeb searches indicate a possible issue with GTK, but I'm not sure. No solutions seem relevant.

Any ideas on how to fix this?latest?d=yIl2AUoC8zA latest?i=QvDU0x9aiyo:70mI_AGELFk:F7zBnMy latest?i=QvDU0x9aiyo:70mI_AGELFk:V_sGLiP latest?d=qj6IDK7rITs latest?i=QvDU0x9aiyo:70mI_AGELFk:gIN9vFwQvDU0x9aiyo
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