I just upgraded my Ubuntu 11.10 (x86) to Ubuntu 12.04 (x86). The upgrade completed without any errors.
Since then, I am unable to access any of the applications in the Dash. The Dash seems to be empty. When I search for some application like gedit
, it says "Sorry, there is nothing that matches your search".
Is there any way to fix it?
None of these fixes worked for me. But after more searching:
worked like a charm. I did need to run:
afterwards though, for the changes to take effect within dash, but the software center just started working straightaway.
You should ensure that you have these 2 packages installed:
For 12.10 and older:
For newer versions:
unity-lens-applications
unity-lens-files
Then logout/login and you will get back you the 2 lenses and the search will search applications and files.
In my case none of the solutions above worked.
The solution I found:
Then close your session and login again, and dash worked again.
Same here. After upgrading from 11.04 to 11.10 to 12.04 (beta2) the DASH menu doesn't list any applications. Previously typing "calc" for example would list the calculator and LibreOffice Calc. Now, nothing shows up, neither in the main DASH window, nor in the application lens.
However, in the main lens songs (FLAC) do show up, but for instance documents don't. Furthermore, I have regular crashes of unity-lens-video. Apport told me this problem had already been reported. Maybe this is related?
Looking a bit closer in ~/.xsession-errors I found that the zeitgeist daemon crashed:
According to https://bugs.launchpad.net/ubuntu/+source/zeitgeist/+bug/986191 this happens when upgrading from Ubuntu 11.04 to 12.04. Removing
~/.local/share/zeitgeist/activity.sqlite
solves the problem. I tried it and it works :-).I just encountered this problem earlier today on my laptop. It surprised me, given that I couldn't think of any reason it didn't show up until now.
After some struggling, I eventually resolved the issue by opening a terminal (Ctrl+Alt+T if you don't already have it pinned to the launcher) and using
unity --replace &
. (You could probably also do this with Unity's Alt+F2 prompt, but it too went missing for me at the time.)I experienced this problem on 11.10 and solved it by installing
unity-place-applications
andunity-place-files
In Ubuntu
Trusty 14.04
, I loosed all Applications in Dash after an Ubuntu Update ofupdate-manager-core
package.The solution was:
$ rm ~/.cache/software-center -R
However as said earlier here the
unity --reset
command is now deprecated. the solution is now:<Alt> <F2>
and typeunity
This will kill your session (please save your work before) and restart unity.