Thanks for your bugreport.
Please attach the files in /var/log/dist-upgrade/ to this bugreport.
Thanks,
Michael
** Changed in: update-manager (Ubuntu)
Status: New = Incomplete
--
package update-manager 1:0.87.21 failed to install/upgrade: ErrorMessage:
SystemError in cache.commit():
** Attachment added: Dependencies.txt
http://launchpadlibrarian.net/13588781/Dependencies.txt
--
package update-manager 1:0.87.21 failed to install/upgrade: ErrorMessage:
SystemError in cache.commit(): E:Sub-process /usr/bin/dpkg returned an error
code (1)