Cabal build not locating installed packages

[Fiftyw3bs]

I've created a development environment using the following command:

nix develop github:input-output-hk/devx#ghc92 --no-write-lock-file --refresh

But after installing packages my project is dependent on using cabal install ... and try to build my project, it gives an error that points to the package not existing.

Indeed, when I ran ghc-pkg list, the package isn't listed there, but in the $CABAL_DIR/packages/hackage... folder, the installed package is there.

Any help would be appreciated.

[sgillespie]

Hello, devx sets an alternate CABAL_DIR ($HOME/.cabal-devx), so it won't find packages that were previously installed.