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[pcorreia@xxxxxxxxx]

When trying to create Poisson.h with ffc it returns
FIRST:

>ffc -l dolfin Poisson.form
This is FFC, the FEniCS Form Compiler, version 0.3.5.
For further information, go to http://www/fenics.org/ffc/.

Preprocessing form file: Poisson.form --> Poisson.py

Phase 1: Analyzing form
-----------------------

  Checking validity of form...
*** Error at -w1_a148(dXa147/dx0) |
((d/dXa147)vi-2)*vi-1(+)*va148[0](+)*ds(0)
*** Integrand may not be restricted in an exterior facet integral.
*** To get more information about this error, rerun ffc with the option -d1.

AND THEN

>ffc -d1 -l dolfin Poisson.form
This is FFC, the FEniCS Form Compiler, version 0.3.5.
For further information, go to http://www/fenics.org/ffc/.

Preprocessing form file: Poisson.form --> Poisson.py

Phase 1: Analyzing form
-----------------------

  Checking validity of form...
Traceback (most recent call last):
  File "/home/paulo/builds/bin/ffc", line 190, in ?
    sys.exit(main(sys.argv[1:]))
  File "/home/paulo/builds/bin/ffc", line 103, in main
    execfile(outname, ns)
  File "Poisson.py", line 52, in ?
    compile([a, L, M, element], "Poisson", "tensor", "dolfin", {'blas':
False, 'precision=': '15', 'optimize': False})
  File "/usr/lib/python2.4/site-packages/ffc/compiler/compiler.py", line
63, in compile
    __compile_forms(forms, prefix, representation, output_language, options)
  File "/usr/lib/python2.4/site-packages/ffc/compiler/compiler.py", line
86, in __compile_forms
    form_data = analyze_form(form)
  File "/usr/lib/python2.4/site-packages/ffc/compiler/compiler.py", line
166, in analyze_form
    form_data = analyze(form)
  File
"/usr/lib/python2.4/site-packages/ffc/compiler/analysis/analyze.py",
line 27, in analyze
    check_form(form)
  File "/usr/lib/python2.4/site-packages/ffc/compiler/analysis/checks.py",
line 23, in check_form
    check_restrictions(form)
  File "/usr/lib/python2.4/site-packages/ffc/compiler/analysis/checks.py",
line 48, in check_restrictions
    raise FormError, (p, "Integrand may not be restricted in an exterior
facet integral.")
ffc.common.exceptions.FormError

I created a directory with the originals 'main.cpp', 'Makefile' and
Poisson.form. I did the same proceeding in the case of pde/Poisson and it
worked.

/Paulo