Comment 6 for bug 1279987

I upgraded my Ubuntu 14.04 installation today with the latest patches. I receive the following error when I attempt to startup the "Startup Disk Creator" utility. This issue is not related to the similar issues related to a particular mounted USB device... I do not have any USB devices mounted when I receive this error.

An unhandled exception occured:
first argument must be the method signature string: GLib.Variant('a{sv}', {})