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] next goal: bindings-monetdb-mapi (user goal) [__0] rejecting: bindings-monetdb-mapi-0.1.0.2 (conflict: pkg-config package monetdb-mapi==11.*, not found in the pkg-config database) [__0] rejecting: bindings-monetdb-mapi-0.1.0.1, bindings-monetdb-mapi-0.1.0.0 (constraint from user target requires ==0.1.0.2) [__0] fail (backjumping, conflict set: bindings-monetdb-mapi) After searching the rest of the dependency tree exhaustively, these were the goals I've had most trouble fulfilling: bindings-monetdb-mapi