Hi Andreas, Yes, this is a bug in our setup.py. We think we just fixed this. Try running firedrake-update that should reinstall the firedrake package, this time with pyadjoint in there. Cheers, David From: firedrake-bounces@imperial.ac.uk <firedrake-bounces@imperial.ac.uk> on behalf of Tataris, A. (Andreas) <a.tataris@uu.nl> Date: Monday, 22 March 2021 at 15:59 To: firedrake <firedrake@imperial.ac.uk> Subject: [firedrake] Firedrake Install Problem Dear reader, I tried to install firedrake in my Macbook. I am running the test command: pytest tests/regression/ -k "poisson_strong or stokes_mini or dg_advection" but I get the error message, ModuleNotFoundError: No module named 'pyadjoint' which is strange because 'pyadjoint' is already in the folder. Do you know what maybe goes wrong there? Thanks in advance and best regards, Andreas