Build Failed with nix-build

[rizary]

I have Nixos installed, and try to nix-build the package. I got the following error:

Configuring heist-1.0.0.0...
Setup: At least the following dependencies are missing:
aeson >=0.6 && <0.11, dlist >=0.5 && <0.8
builder for ‘/nix/store/gf9zjdvyv2xk8l9jw8h6aq122wfqlys9-heist-1.0.0.0.drv’ failed with exit code 1
cannot build derivation ‘/nix/store/afxfjx4b0dclq68gkp1mdr78fxp52p37-hsnippet-backend-0.1.drv’: 1 dependencies couldn't be built
building path(s) ‘/nix/store/vk77c6ws87y698y5bmwzrj3l21b6x4gd-nodejs-xmlhttprequest-ssl-1.5.1’
cannot build derivation ‘/nix/store/l51y3az2fhxdwahsvq73sq9airxmg2ci-hsnippet.drv’: 1 dependencies couldn't be built
error: build of ‘/nix/store/l51y3az2fhxdwahsvq73sq9airxmg2ci-hsnippet.drv’ failed

[mightybyte]

Hmmm, I'm not sure what's going on. It sounds to me like Nixos probably ships with a more recent version of aeson. Not sure why you're not getting the version of nixpkgs defined by the reflex-platform submodule. If you figure it out, I'd be interested in a pull request.