Dear all,
As a test, I would like to reproduce the result of example (Topology optimisation of fluids in Stokes flow). I installed everything with Conda as it was recommended but I get the following error:
File “/home/mihabibi/anaconda3/envs/fenicsproject_2018/lib/python3.7/site-packages/pyadjoint/optimization/ipopt_solver.py”, line 44, in __build_pyipopt_problem
nlp = pyipopt.create(len(ub), # length of control vector
AttributeError: module ‘pyipopt’ has no attribute ‘create’