[Libmesh-users] nonlinear solver and petsc 3.2

[Michael P. <mpo...@pu...>]

Dear libmesh developers and users,
I'd like to upgrade my code to use libmesh-0.7.2 with petsc3.2.

My application uses nonlinear newton solver.
Unfortunately with the new version of libmesh and petsc I get the 
following error:
[0]PETSC ERROR: --------------------- Error Message 
------------------------------------
[0]PETSC ERROR: Object is in wrong state!
[0]PETSC ERROR: Matrix must be set first!
[0]PETSC ERROR: 
------------------------------------------------------------------------

I searched over the web and found a discussion about this issue:
http://www.mail-archive.com/lib...@li.../msg03530.html

I tried to follow this thread, but could not find a solution.
Could you, please, tell me how should I change my application in order 
to have the matrix in a correct state?
Thank you,
Michael