ob run exits at code 1 with macOS 13

[dubbajones]

I try to launch obelisk after installation but "ob run" command exits on this warning:

Process exited with code 1; /nix/store/2q43kfc2m033z846dbbi8skpfsphp3gq-nix-2.11.0/bin/nix eval --impure --expr $'(let a = import ./. {}; in toString (a.reflex.nixpkgs.lib.isDerivation a.passthru.staticFilesImpure))' --raw

macOS 13

[mrehayden1]

Same on Ubuntu 20.24

[mrehayden1]

It seems you might need the following in your nix.conf:

experimental-features = nix-command

That fixes it for me.

[alexfmpe]

Hard to tell without the output of ob run -v but if that fixes it then this is a duplicate of #1010

[mrehayden1]

I had the same message and the above fix solved it for me.