Project won't build when using a dependency installed using nix

Hello,

First of all I think this plugin is awesome. It provides a lot of cool features, and even if I struggled to get it to work at the begining, it was working like a charm so far, so thank you for the amazing work !

I am working on an llvm project right now. I need to use llvm-6.0 for that, and I needed nix to get this specific package.

My whole project is working just fine, all the plugin’s options work. However, since I added llvm, the plugin goes crazy, and spams me with messages like [global-stack-repl] Stack REPL couldn't be started within 5 seconds The first error message is Project won't be built because building its dependencies failed so I guessed that my llvm dependency broke it all.

My stack.yaml:

resolver: lts-12.18

packages:
- .

extra-deps:
  - llvm-hs-6.0.0
  - llvm-hs-pure-6.0.0

flags:
  llvm-hs:
    shared-llvm: true

nix:
  enable: true
  packages: [llvm_6]

My dependencies in the package.yaml (only thing I changed in the file):

dependencies:
- base >= 4.7 && < 5
- llvm-hs
- llvm-hs-pure
- bytestring

In short, none of the plugin’s features work since I added that llvm-6.0 dependency via nix to the project.

[fabrien]

Wow, it is working now!

I still need to set the PATH variable to

PATH	$PATH$:/home/Arthamios/.nix-profile/bin

but if that is set, together with the other variables

NIX_PATH	/nix/store/6lpcyrjnzj5kqksghpn6z1aw0bxhaygc-user-environment
NIX_PROFILES	/nix/var/nix/profiles/default /home/Arthamios/.nix-profile
NIX_SSL_CERT_FILE	/etc/pki/ca-trust/extracted/pem/tls-ca-bundle.pem

Everything is actually running fine! The only thing now not functionnal is the documentation, but that did not work before this llvm issue, so it is another issue.

Thanks a lot for all the support and help you provided and the time you invested on resolving this issue!

[rikvdkleij]

Btw, released beta63 with again improvements