I tried export but it failed in this condition. I also didn't get that message. It just froze.
Some more details:
I hibernate my computer instead of shutting it down, and in this instance it didn't detect the drive after starting back up. When I tried to load from either the recent list, or the windows taskbar recent list (windows 7) it just froze and I had to close the program from the task manager. So the error checking may not be on the command line handler.