I uninstalled sudo apt-get remove libhybris
and sudo apt-get autoremove Now gnome-shell and other application launch again without ask for libwayland-egl.so.1. explanation: http://ubuntuforums.org/showthread.php?t=2209731 libhybris library was installed with Unity 8, when I wanted to test it. But when I uninstalled unity 8, this library was not uninstalled and cause gnome-shell (and other application) didn't launch and asked for libwayland-egl.so.1. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1288706 Title: gnome-shell can not launch, ask for libwayland-egl.so.1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1288706/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs