GFLW-b version may need specifying in cabal file.

[drhodes]

lambdacube-core installed without issue.

$ cd q3demo; cabal install
Main.hs:428:47: Not in scope: data constructor `CoreProfile'
Failed to install q3demo-0.1.1

Seems the specific version needed to be added on (line 46) in q3demo.cabal
...
GLFW-b == 0.1.0.5,
...

It builds fine now. Thanks for sharing your project.

[csabahruska]

Thanks, it's fixed now.