Hello, I want to use YAML in my app I have run: cabal install yaml I have added it to my build-depends line in my .cabal file: Build-Depends: base,time,yaml $ runhaskell Setup.lhs configure Configuring xtdo-0.1... Setup.lhs: At least the following dependencies are missing: yaml -any Oh no! I tried just importing Text.Libyaml in both my app and GHCi but neither error gave any clues. I also found references to HsSyck, data-object-yaml and YAML::Tiny libraries, but not sure what I should be using. Right now I'm feeling totally lost, not being able to find examples of code using yaml, nor documentation for how I would use the libraries to play around with it. Also not comfortable I understand the interaction between cabal, runhaskell, ghc, and my build file. Any pointers? References to documentation I should have read also appreciated. Cheers, Xavier (I don't know how relevant it is, but here is my minimal project I am trying to add it to: https://github.com/xaviershay/xtdo-hs)