problem with entity.domain in notebooks/crystal.py
~/DUNEPY-TEST/dune/dune-fempy/notebooks/crystal.py in mark(element) 172 marker = common.Marker 173 solutionLocal = solution.localFunction(element) --> 174 grad = solutionLocal.jacobian(element.geometry.domain.center) 175 if grad[0].infinity_norm > 1.2: 176 return marker.refine if element.level < maxLevel else marker.keep
TypeError: Unable to convert function return value to a Python type! The signature was (arg0: dune.generated.hierarchicalgrid_2369f78e1a02f59d4b43f3ae6ba3b438.Geometry) -> Dune::