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DeterminateSystems / zero-to-nix

Zero to Nix is your guide to learning Nix and flakes. Created by Determinate Systems.
https://zero-to-nix.com
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Golang flake example in guide 4 fails to build #331

Closed rome-user closed 1 month ago

rome-user commented 4 months ago

I am following the exact instructions. The following error appears in the terminal.

% mkdir nix-go-pkg && cd nix-go-pkg
% nix flake init --template "github:DeterminateSystems/zero-to-nix#go-pkg"
...
% nix build
error: hash mismatch in fixed-output derivation '/nix/store/55diq4szqziz1va15k79m4vqq0hqfbf6-zero-to-nix-go-go-modules.drv':
         specified: sha256-pYnN8rxXNNLRegvJySwAyMUPBmnhSiDSHfMQpjB9Qjs=
            got:    sha256-26t5XhDl9TWHGdYuzxzkuM1NMvEp7XUlRr3BeCiJFgA=
error: 1 dependencies of derivation '/nix/store/cr1rzpjg6i9pf20dr0zqpzr3gn6l8y4h-zero-to-nix-go.drv' failed to build
rome-user commented 4 months ago

I am not sure if this is good practice, but replacing the hash in the flake.nix with the expected value fixes the build on my end. Maybe the guide can elaborate on this?

drod3763 commented 4 months ago

The same issue in the javascript flake

error: hash mismatch in fixed-output derivation '/nix/store/6dpr18z8sinm87qbk0d515q9nfzpsmkj-zero-to-nix-javascript-npm-deps.drv':
         specified: sha256-8Bj7nPZBAU+SnVTeKeArcjYnfZV4z/4I7fX+l0V+v04=
            got:    sha256-A/q4C8Ox1InaJ/320+pU9uBUv6zqTKlzzOmJUvzBOnI=
error: 1 dependencies of derivation '/nix/store/89fjyx59sgmllbylygj9bn99sx0pfz26-zero-to-nix-javascript.drv' failed to build