Cannot start new haskell project due to missing system-cxx-std-lib

[tathougies]

Describe the bug

I started a new haskell.nix project. Previously, I've started many projects using haskell.nix. I set everything up as usual, but when I try to run cabal v2-build for my project (which depends on text), I get the following error:

Error: [Cabal-7107]
Could not resolve dependencies:
[__0] trying: coopt-types-0.0.0 (user goal)
[__1] trying: text-2.1.2 (dependency of coopt-types)
[__2] trying: text:-pure-haskell
[__3] trying: text:+simdutf
[__4] unknown package: system-cxx-std-lib (dependency of text -pure-haskell +simdutf)
[__4] fail (backjumping, conflict set: system-cxx-std-lib, text, text:pure-haskell, text:simdutf)
After searching the rest of the dependency tree exhaustively, these were the goals I've had most trouble fulfilling: base, text, bytestring, template-haskell, text:simdutf, text:pure-haskell, system-cxx-std-lib, coopt-types
Try running with --minimize-conflict-set to improve the error message.

A clear and concise description of what the bug is, including:

• Build system: x86_64-linux
• GHC version: 9.10.1
• Haskell.nix version (or commit) used: haskellNix: github:input-output-hk/haskell.nix/54ddc77cd29c19779489d8f7fae14d70e90d8c68

Steps To Reproduce

flake.nix:

{
  description = "Compiler toolkit for Haskell";
  inputs.haskellNix.url = "github:input-output-hk/haskell.nix";
  inputs.nixpkgs.follows = "haskellNix/nixpkgs-unstable";
  inputs.flake-utils.url = "github:numtide/flake-utils";

  outputs = { self, nixpkgs, flake-utils, haskellNix }:
    flake-utils.lib.eachSystem [ "x86_64-linux" "x86_64-darwin" ] (system:
    let
      overlays = [ haskellNix.overlay
        (final: prev: {
          # This overlay adds our project to pkgs
          cooptProject =
            final.haskell-nix.project' {
              src = ./.;
              compiler-nix-name = "ghc9101";
              # This is used by `nix develop .` to open a shell for use with
              # `cabal`, `hlint` and `haskell-language-server`
              shell.tools = {
                cabal = {};
                #                hlint = {};
                hpack = {};
                haskell-language-server = {};
              };
              # Non-Haskell shell tools go here
              shell.buildInputs = with pkgs; [
                nixpkgs-fmt
              ];
              # This adds `js-unknown-ghcjs-cabal` to the shell.
              # shell.crossPlatforms = p: [p.ghcjs];
            };
        })
      ];
      pkgs = import nixpkgs { inherit system overlays; inherit (haskellNix) config; };
      flake = pkgs.cooptProject.flake {
        # This adds support for `nix build .#js-unknown-ghcjs:hello:exe:hello`
        # crossPlatforms = p: [p.ghcjs];
      };
    in flake // {
      # Built by `nix build .`
      packages.default = flake.packages."coopt:lib:coopt";
    });
}

cabal.project:

packages:
        coopt-types

coopt-types/coopt-types.cabal:

cabal-version: 1.12

-- This file has been generated from package.yaml by hpack version 0.37.0.
--
-- see: https://github.com/sol/hpack

name:           coopt-types
version:        0.0.0
build-type:     Simple

library
  exposed-modules:
      Coopt.Types
  other-modules:
      Paths_coopt_types
  build-depends:
      base
    , fingertree
    , text
  default-language: Haskell2010

To reproduce:

run nix develop, and then try to run cabal v2-build coopt-types

Expected behavior

It should resolve packages and compile

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[hamishmack]

I think this is probably fixed by #2367