Is there a particular reason why you desperately need that particular version of Thetis? Those Zenodo archives are provided for provenence tracking of the related paper, they are not really intended for everyday use. You almost certainly want to use the current version of thetis. This can be obtained by first activating your Firedrake venv and then running: firedrake-update --install thetis Cheers, David From: firedrake-bounces@imperial.ac.uk <firedrake-bounces@imperial.ac.uk> on behalf of Majdi Fanous <fanousm2@uni.coventry.ac.uk> Date: Monday, 12 April 2021 at 14:54 To: firedrake <firedrake@imperial.ac.uk> Subject: [firedrake] Installing Thetis Hello, My name is Majdi Fanous and I am a post-graduate researcher at Coventry University. I have installed Firedrake by following the instructions from : https://www.firedrakeproject.org/download.html. However, when I want to install Thetis from: https://zenodo.org/record/3385804#.YHRDpBLTWwE, I am facing errors. Could you please guide me on the installation of this version of Thetis, after installing Firedrake, from Zenodo as it is important from my research. If you could provide me with the necessary commands and steps to do so would be great. Thanks. Regards, Majdi Fanous No.1 Modern University in the Midlands Guardian University Guide 2021 1st for Overseas Student Experiences based on student trips abroad from HESA 2018/19 UK data Top 30 in the World for International Students QS World University Rankings 2021 University of the Year for Student Experience 2019 The Times and Sunday Times Good University Guide 2019 NOTICE This message and any files transmitted with it is intended for the addressee only and may contain information that is confidential or privileged. Unauthorised use is strictly prohibited. If you are not the addressee, you should not read, copy, disclose or otherwise use this message, except for the purpose of delivery to the addressee. Any views or opinions expressed within this e-mail are those of the author and do not necessarily represent those of Coventry University.