Traceback (most recent call last):
  File "compressible_stratified.py", line 77, in <module>
    solve ( a_u_project == L_u_project , dHdu0 , solver_parameters={'ksp_rtol': 1e-14} )
  File "/usr/not-backed-up/firedrake/2016-09-15/firedrake/lib/python2.7/site-packages/firedrake/solving.py", line 119, in solve
    _solve_varproblem(*args, **kwargs)
  File "/usr/not-backed-up/firedrake/2016-09-15/firedrake/lib/python2.7/site-packages/firedrake/solving.py", line 147, in _solve_varproblem
    solver.solve()
  File "/usr/not-backed-up/firedrake/2016-09-15/firedrake/lib/python2.7/site-packages/firedrake/variational_solver.py", line 198, in solve
    self.snes.solve(None, v)
  File "PETSc/SNES.pyx", line 537, in petsc4py.PETSc.SNES.solve (src/petsc4py.PETSc.c:170168)
  File "PETSc/petscsnes.pxi", line 261, in petsc4py.PETSc.SNES_Function (src/petsc4py.PETSc.c:33322)
  File "/usr/not-backed-up/firedrake/2016-09-15/firedrake/lib/python2.7/site-packages/firedrake/solving_utils.py", line 216, in form_function
    form_compiler_parameters=problem.form_compiler_parameters)
  File "/usr/not-backed-up/firedrake/2016-09-15/firedrake/lib/python2.7/site-packages/firedrake/assemble.py", line 81, in assemble
    inverse=inverse, mat_type=mat_type, appctx=appctx)
  File "<decorator-gen-295>", line 2, in _assemble
  File "/usr/not-backed-up/firedrake/2016-09-15/firedrake/lib/python2.7/site-packages/firedrake/utils.py", line 62, in wrapper
    return f(*args, **kwargs)
  File "/usr/not-backed-up/firedrake/2016-09-15/firedrake/lib/python2.7/site-packages/firedrake/assemble.py", line 444, in _assemble
    return thunk(bcs)
  File "/usr/not-backed-up/firedrake/2016-09-15/firedrake/lib/python2.7/site-packages/firedrake/assembly_cache.py", line 357, in inner
    r = thunk(bcs)
  File "/usr/not-backed-up/firedrake/2016-09-15/firedrake/lib/python2.7/site-packages/firedrake/assemble.py", line 394, in thunk
    op2.par_loop(*args, **kwargs)
  File "<decorator-gen-269>", line 2, in par_loop
  File "/usr/not-backed-up/firedrake/2016-09-15/firedrake/lib/python2.7/site-packages/pyop2/versioning.py", line 154, in modifies_arguments
    retval = func(*args, **kwargs)
  File "/usr/not-backed-up/firedrake/2016-09-15/firedrake/lib/python2.7/site-packages/pyop2/op2.py", line 269, in par_loop
    return backends._BackendSelector._backend.par_loop(kernel, iterset, *args, **kwargs)
  File "/usr/not-backed-up/firedrake/2016-09-15/firedrake/lib/python2.7/site-packages/pyop2/base.py", line 4369, in par_loop
    return _make_object('ParLoop', kernel, it_space, *args, **kwargs).enqueue()
  File "/usr/not-backed-up/firedrake/2016-09-15/firedrake/lib/python2.7/site-packages/pyop2/backends.py", line 72, in _make_object
    return _BackendSelector._backend.__dict__[obj](*args, **kwargs)
  File "<decorator-gen-262>", line 2, in __init__
  File "/usr/not-backed-up/firedrake/2016-09-15/firedrake/lib/python2.7/site-packages/pyop2/utils.py", line 130, in wrapper
    return f(*args, **kwargs)
  File "/usr/not-backed-up/firedrake/2016-09-15/firedrake/lib/python2.7/site-packages/pyop2/base.py", line 3999, in __init__
    fundecl = kernel._attached_info['fundecl']
TypeError: 'bool' object has no attribute '__getitem__'

What needs to be changed to get it to compile again?

Thanks 
Will