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["Andy Ray Terrel" <aterrel@xxxxxxxxxxxx>]

With the following form I'm getting the following error.  Any ideas?

family = "Lagrange"
shape = "triangle"
order = 2

SE = FiniteElement(family, shape, order-1)
VE = VectorElement(family, shape, order)
MixedElement = SE + VE

S_00,v = TestFunctions(MixedElement)
tau_00,u = TrialFunctions(MixedElement)

a = (S_00*(tau_00*D(u[0],0)))*dx


----------

$ ffc -d1 TensorTest.form
This is FFC, the FEniCS Form Compiler, version 0.5.0.
For further information, go to http://www.fenics.org/ffc/.

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

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

  Checking validity of form... ok
  Reassigning form indices... done
  Checking validity of form... ok
  Simplifying form...
  Reassigning form indices...
  done
  Reassigning form indices... done
  done
  Checking validity of form... ok
  Determining the range of the indices... done
  Checking validity of form... ok
  Extracting form data...
Traceback (most recent call last):
  File "/usr/local/bin/ffc", line 175, in <module>
    sys.exit(main(sys.argv[1:]))
  File "/usr/local/bin/ffc", line 102, in main
    execfile(outname, ns)
  File "TensorTest.py", line 22, in <module>
    compile([a, L, M, element], "TensorTest", {'language': 'ufc',
'blas': False, 'form_postfix': True, 'precision': '15',
'split_implementation': False, 'quadrature_points': False,
'representation': 'tensor', 'optimize': False})
  File "/usr/local/lib/python2.5/site-packages/ffc/compiler/compiler.py",
line 68, in compile
    (form_data, form_representation) = __compile_forms(forms, prefix, options)
  File "/usr/local/lib/python2.5/site-packages/ffc/compiler/compiler.py",
line 95, in __compile_forms
    form_data = analyze_form(form)
  File "/usr/local/lib/python2.5/site-packages/ffc/compiler/compiler.py",
line 187, in analyze_form
    form_data = analyze(form)
  File "/usr/local/lib/python2.5/site-packages/ffc/compiler/analysis/analyze.py",
line 51, in analyze
    form_data = FormData(form)
  File "/usr/local/lib/python2.5/site-packages/ffc/compiler/analysis/formdata.py",
line 60, in __init__
    self.elements                     = self.__extract_elements(form,
self.rank, self.num_coefficients)
  File "/usr/local/lib/python2.5/site-packages/ffc/compiler/analysis/formdata.py",
line 126, in __extract_elements
    raise FormError, (form, "Unable to extract all elements")
ffc.common.exceptions.FormError