Hello I a new to openlane and have been trying to install it for a while, after cloning the repo and after I cd into the openlane2 directory i execute the nix-shell which builds to about 90% and then throws a build error, for context i am using Ubuntu in WSL.

@George Johnson Nothing should be building. Check that you've set up the binary cache: https://openlane2.readthedocs.io/en/latest/getting_started/common/nix_installation/installation_win.html#installing-nix

Thanks @donn it is working now after setting up the binary cache, i was under the impression that it was only required if i had nix preinstalled

Our Nix install command includes the cache:

sh <(curl -L <https://nixos.org/nix/install>) --no-daemon --yes --nix-extra-conf-file <(echo "experimental-features = nix-command flakes\nextra-substituters = <https://openlane.cachix.org>\nextra-trusted-public-keys = openlane.cachix.org-1:qqdwh+QMNGmZAuyeQJTH9ErW57OWSvdtuwfBKdS254E=\n")

But if you still Nix using another method, you need to set up the binary cache manually.

Oh, I think that is what I had used not sure what i did wrong...

Actually come to think of it, I ran into a similar issue recently-- I think

--nix-extra-conf-file

doesn't work on non-systemd environments such as WSL2 or inside Docker containers. I think this is a documentation issue… Will investigate.