Can you please use the forum at http://forum.freecadweb.org for that kind of issue? Thanks.

Commenting post 9: Can you please use the forum at http://forum.freecadweb.org for that kind of issue? Thanks.

In this case I believe you are using the wrong version offered by the PPA. There is a specific version corresponding to each ubuntu version. You must make sure you are using the correct one for your system.