[[!comment format=mdwn username="http://joeyh.name/" ip="4.154.0.21" subject="comment 3" date="2013-07-30T21:25:32Z" content=""" Edit Utility/Url.hs and play around with the version in the `MIN_VERSION_network` define. It seems to me that your system needs to build with the #else branch of the #ifdef, despite having a version of the haskell network package older than 2.4.0. It's possible that the haskell network package has been modified by Fedora. """]]