I have upgraded from ubuntu 13.10 to 14.04 and Dolfin doesnt work, how may I solve that problem?

You may downgrade back to 13.10!

Or you can tell us a bit more about the problem...
as a first step, try uninstalling and reinstalling.

commented Apr 23, 2014 by mwelland FEniCS User (8,410 points)

Thanks for the answer, already tried the - uninstalling -installing back.
Didn't work.
Also modified a package (swig to an older version), some demos started to run well, but membrane1.py demo gives this warning

Error: Unable to generate ellipse mesh.
*** Reason: Generation of ellipse meshes requires DOLFIN to be configured with CGAL.

*** Where: This error was encountered inside EllipseMesh.cpp.

commented Apr 23, 2014 by iafleischer FEniCS Novice (110 points)

Hmmm... there was recently a fenics-support issue regarding swig incompatibilities that was resolved by removing the ~/.instant folder (which I think can also be accomplished by issues the command 'instant-clean' ). Could you try that?
When you run a model parts are compiled and stored in the ~/.instant folder. By removing them you are forcing everything to recompile, which may resolve some of this.

Cheers,
Mike

commented Apr 24, 2014 by mwelland FEniCS User (8,410 points)

Mike,
I did it. The problems persists. Though running fenics in Ubuntu 12.04, everything goes fine.

Regards,

Igor

commented Apr 25, 2014 by iafleischer FEniCS Novice (110 points)

Please update your question with the actual question and include your error message (given in the comment above).

commented Apr 29, 2014 by Marie E. Rognes FEniCS User (5,380 points)