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: pine-0.1.0.1 (user goal) [__1] next goal: sdl2-image (dependency of pine) [__1] rejecting: sdl2-image-2.0.0, sdl2-image-0.1.3.2, sdl2-image-0.1.3.1, sdl2-image-0.1.3.0, sdl2-image-0.1.1.0, sdl2-image-0.1.0.1 (conflict: pkg-config package SDL2_image>=2.0.0, not found in the pkg-config database) [__1] fail (backjumping, conflict set: pine, sdl2-image) After searching the rest of the dependency tree exhaustively, these were the goals I've had most trouble fulfilling: base, sdl2-image, pine