Comment 47 for bug 806248

Confirming also the fix, but as of now unity was 5.18.0 it won't install "simply" so after adding the ppa in #43 and enabling the "precise-proposed" then the following command do the install :

sudo apt-get -V install unity=5.16.0-0ubuntu2~timefix1 libunity-core-5.0-5=5.16.0-0ubuntu2~timefix1 unity-common=5.16.0-0ubuntu2~timefix1 unity-services=5.16.0-0ubuntu2~timefix1

Then execute "unity --replace &"

Launcher is back.

Hope this help.