[dune-pdelab] Dune reported error in newton.hh

[Jared Okiro]

Dear PDELab Members,

I am a new dune user. I am also not so experienced in C++, so still
learning both.
I have used the example DG code in
pdelab/localoperator/convectiondiffusiondg.hh
to solve a scalar nonlinear reaction-diffusion  equation and it worked well.
I have extended the code to solve a two component  nonlinear
reaction-diffusion
system. However, at run time I get the error below:

*Dune reported error: NewtonLinearSolverError
[linearSolve:/homes/okiro/DUNE/dune-svn/dune-pdelab/dune/pdelab/backend/../newton/newton.hh:174]:
NewtonSolver::linearSolve(): Linear solver did not converge in 0 iterations.
*

I suspect the error is in my local operator (especially in
alpha_skeleton()). I would be grateful
if someone could assist me resolve this error. I can provide the local
operator if possible.
Thank you.

Kind regards,

-- 
Jared Ouma Okiro,
Institute for Analysis and Numerics,
Otto-von- Guericke Universität,
Universitätsplatz 02, Gebaude 02 / 115
39106 Magdeburg, Germany
Office Tel: +493916712660
Fax:         +493916718073
Mobile:     +4917657479787
Home Tel: +4939155917376
Email:jared.okiro at st.ovgu.de
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