Currently Being ModeratedJan 19, 2013 8:38 AM (in response to Beetone)
As a test try creating a vault on a different drive, the internal drivr in your home folder will work well.
If that works then there is most likely some permission problem with the drive. If it fails then there is an Aperture problem.
Post the results back and we can try to sort it out.
Currently Being ModeratedJan 19, 2013 12:43 PM (in response to Frank Caggiano)
Thanks for your input.
As I also had a problem with Time Machine - which would not run updates - it occurred to me that there was a more widespread problem in the operating system. I had run Apple's Disk Utility which had reported that everything was ok. I have now run Disk Doctor (which I should have done sooner) which came up with a lenghty list of broken links which it repaired.
TM is now working normally.
Had it not seemed that the problem was widespread I would have followed the route you suggested.