Had this today. I upgraded from 14.04 to 14.10 to 15.04 and somewhere along the line I started getting messages such as
Errors were encountered while processing: cups-client printer-driver-postscript-hp printer-driver-foo2zjs cups-bsd cups and W: Unknown Multi-Arch type 'no' for package 'compiz-core' W: Unknown Multi-Arch type 'no' for package 'compiz-gnome' W: Unknown Multi-Arch type 'no' for package 'compiz-core' W: Unknown Multi-Arch type 'no' for package 'compiz-gnome' W: You may want to run apt-get update to correct these problems Unfortunately I didn't document the exact steps I took to resolve the issue, but it was a combination of dpkg --configure -a and apt-get install -f and then going into synaptic and upgrading 'apt' and 'apt-utils' I then used synaptic (as I was in there) to mark all upgrades, and it wen through (with a fair smattering of warnings) to completion. I had an error message at the end: zram-config there is no script in the new version of the package but closed that and then re-ran apt-get update, apt-get upgrade - nothing else to install, so rebooted and everything came up OK. Clearly the apt-get issue identified above was causing a conflict, but a combination of the above sorted it for me. Vivid now running nicely! -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to compiz in Ubuntu. https://bugs.launchpad.net/bugs/1404783 Title: warnings from apt: W: Unknown Multi-Arch type 'no' for package 'compiz-core' Status in APT: New Status in Compiz: Invalid Status in compiz package in Ubuntu: Confirmed Bug description: When running apt-get update on Ubuntu vivid I get these warnings: W: Unknown Multi-Arch type 'no' for package 'compiz-core' W: Unknown Multi-Arch type 'no' for package 'compiz-gnome' affects ubuntu/compiz -- bye, pabs https://wiki.debian.org/PaulWise To manage notifications about this bug go to: https://bugs.launchpad.net/apt/+bug/1404783/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp