Resolving dependencies... Error: cabal: Could not resolve dependencies: [__0] trying: liquid-vector-0.12.3.1 (user goal) [__1] next goal: vector (dependency of liquid-vector) [__1] rejecting: vector-0.13.0.0 (conflict: liquid-vector => vector>=0.12.3.1 && <0.13) [__1] trying: vector-0.12.3.1 [__2] trying: base-4.16.3.0/installed-4.16.3.0 (dependency of vector) [__3] trying: liquidhaskell-0.9.0.2.1 (dependency of liquid-vector) [__4] next goal: ghc (dependency of liquidhaskell) [__4] rejecting: ghc-9.2.4/installed-9.2.4 (conflict: liquidhaskell => ghc^>=9) [__4] skipping: ghc-9.4.4, ghc-9.4.3, ghc-9.4.2, ghc-9.4.1, ghc-9.2.7, ghc-9.2.6, ghc-9.2.5, ghc-9.2.4, ghc-9.2.3, ghc-9.2.2, ghc-9.2.1 (has the same characteristics that caused the previous version to fail: excluded by constraint '^>=9' from 'liquidhaskell') [__4] rejecting: ghc-9.0.2 (conflict: base==4.16.3.0/installed-4.16.3.0, ghc => base>=4.11 && <4.16) [__4] skipping: ghc-8.10.7, ghc-8.10.2, ghc-8.10.1, ghc-8.8.3, ghc-8.8.1, ghc-8.6.5, ghc-8.6.4, ghc-8.6.1, ghc-8.4.4, ghc-8.4.3, ghc-8.4.1, ghc-8.2.2, ghc-8.2.1 (has the same characteristics that caused the previous version to fail: excludes 'base' version 4.16.3.0) [__4] rejecting: ghc-9.2.3.20220620 (conflict: liquidhaskell => ghc^>=9) [__4] fail (backjumping, conflict set: base, ghc, liquidhaskell) After searching the rest of the dependency tree exhaustively, these were the goals I've had most trouble fulfilling: liquidhaskell, liquid-vector, base, ghc, vector Try running with --minimize-conflict-set to improve the error message.