:: Synchronizing package databases...
 core is up to date
 extra is up to date
 community is up to date
 catalyst is up to date
:: Starting full system upgrade...
resolving dependencies...
looking for inter-conflicts...

Targets (2): automake-1.11.3-1  python2-2.7.2-5

Total Installed Size:   70.90 MiB
Net Upgrade Size:       0.00 MiB

checking package integrity...
Errors occurred, no packages were upgraded.
error: failed to commit transaction (wrong or NULL argument passed)