Resolving dependencies... Error: cabal: Could not resolve dependencies: [__0] trying: project-m36-1.2.0 (user goal) [__1] trying: websockets-0.13.0.0 (dependency of project-m36) [__2] trying: binary-0.8.9.1/installed-inplace (dependency of websockets) [__3] trying: ghc-9.8.4/installed-inplace (dependency of project-m36) [__4] next goal: linux-xattr (dependency of project-m36) [__4] rejecting: linux-xattr-0.1.1.0, linux-xattr-0.1.0.1, linux-xattr-0.1.0.0 (conflict: binary => bytestring==0.12.1.0/installed-inplace, linux-xattr => bytestring>=0.10 && <0.11) [__4] fail (backjumping, conflict set: binary, linux-xattr, project-m36) After searching the rest of the dependency tree exhaustively, these were the goals I've had most trouble fulfilling: ghc, base, project-m36, binary, linux-xattr, websockets Try running with --minimize-conflict-set to improve the error message.