I also get this error while running update command 'sudo apt-get update && sudo apt-get upgrade' after fresh installation of Ubuntu 14.04.3.
=============== Error Log ========================== (gtk-update-icon-cache-3.0:5815): GdkPixbuf-WARNING **: Cannot open pixbuf loader module file '/usr/lib/x86_64-linux-gnu/gdk- pixbuf-2.0/2.10.0/loaders.cache': No such file or directory This likely means that your installation is broken. Try running the command gdk-pixbuf-query-loaders > /usr/lib/x86_64-linux-gnu/gdk-pixbuf-2.0/2.10.0/loaders.cache to make things work again for the time being. ======================================================== So as instructed in log , i ran 'sudo gdk-pixbuf-query-loaders > /usr/lib/x86_64-linux-gnu/gdk-pixbuf-2.0/2.10.0/loaders.cache ' after that when i restarted my laptop, i got no top-bar on login screen , no wallpaper, and also occurred problem in opening desktop. It shows blue screen then put me again on login screen. To resolve this problem i have to reinstall unity desktop. Waiting to fix this issue. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1492767 Title: gdk-pixbuf packages update breaks the GUI in Trusty 14.04.3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdk-pixbuf/+bug/1492767/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs