Why not can I run the cbc.block ‘s demos correctly？

The errors hints that can not find "petsc",but I can install Fenics on Ubuntu by "sudo apt-get install fenics ",I know I have the petsc already！Thanks！

closed with the note: I have solved it by myself,thanks!

asked May 5, 2014 by motianlunfenics FEniCS Novice (310 points)
closed May 8, 2014 by motianlunfenics

Which demo are you running? Also please copy and paste the error message for consideration.

commented May 7, 2014 by simon_funke FEniCS Novice (690 points)

Please post the solution as an answer, since it might be valuable for others.

commented May 9, 2014 by simon_funke FEniCS Novice (690 points)

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