While running 'rug up', during the package installation, the process ended suddenly with a Transaction Failed message. Zmd-messages.log reports the following:

Code:
02 Dec 2009 10:15:44 INFO  RPMBackend           Transaction start, 652 steps
02 Dec 2009 10:19:55 INFO  Progress             Progress.Stop Message: Invalid package: 
02 Dec 2009 10:19:55 INFO  Progress             Progress.Stop Message: Invalid package: 
02 Dec 2009 10:19:55 ERROR Transaction          Transaction failed: Invalid package:
How do I restart the rug up process? When I type rug lu, it reports that there are no updates to install.

Thanks,
Dan