Warning: The install command is a part of the legacy v1 style of cabal usage. Please switch to using either the new project style and the new-install command or the legacy v1-install alias as new-style projects will become the default in the next version of cabal-install. Please file a bug if you cannot replicate a working v1- use case with the new-style commands. For more information, see: https://wiki.haskell.org/Cabal/NewBuild Resolving dependencies... cabal: Could not resolve dependencies: [__0] trying: stratux-demo-0.0.12 (user goal) [__1] next goal: stratux (dependency of stratux-demo) [__1] rejecting: stratux-0.0.10, stratux-0.0.9, stratux-0.0.8, stratux-0.0.7, stratux-0.0.6, stratux-0.0.5, stratux-0.0.4, stratux-0.0.3, stratux-0.0.2, stratux-0.0.1 (conflict: stratux-demo => stratux==0.0.12) [__1] fail (backjumping, conflict set: stratux, stratux-demo) After searching the rest of the dependency tree exhaustively, these were the goals I've had most trouble fulfilling: stratux-demo, stratux