I just upgraded to 14.04 from 12.04 LTS and now Dash finds apps, but I can't launch them. It seems to hang - but the system doesn't freeze or crash.

Any help would be appreciated.


Try reinstalling unity with:

sudo apt-get update
sudo apt-get install --reinstall ubuntu-desktop
sudo apt-get install unity
  • Thank you. Your suggestion worked (though I did have to reboot for it to do so). Now on to the next problem I'm having with the upgrade. Again, thanks. – user136484 Jul 24 '14 at 22:23
  • In fact, my whole system seems to be working faster now!! – user136484 Jul 24 '14 at 22:27
  • I'm glad to hear that! – Deathstroke Jul 24 '14 at 23:58

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