Resolving dependencies... Error: cabal: Could not resolve dependencies: [__0] next goal: clod (user goal) [__0] rejecting: clod-0.1.1 (constraint from user target requires ==0.1.0) [__0] trying: clod-0.1.0 [__1] trying: polysemy-plugin-0.4.5.3 (dependency of clod) [__2] next goal: ghc (dependency of polysemy-plugin) [__2] rejecting: ghc-9.6.3/installed-9.6.3 (conflict: clod => transformers>=0.5 && <0.6, ghc => transformers==0.6.1.0/installed-0.6.1.0) [__2] rejecting: ghc-9.12.1, ghc-9.10.1, ghc-9.8.2, ghc-9.8.1, ghc-9.6.6, ghc-9.6.5, ghc-9.6.4, ghc-9.6.3, ghc-9.6.1, ghc-9.4.8, ghc-9.4.7, ghc-9.4.6, ghc-9.4.5, ghc-9.4.4, ghc-9.4.3, ghc-9.4.2, ghc-9.4.1, ghc-9.2.8, 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, ghc-9.0.2, 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, ghc-9.2.3.20220620 (constraint from non-upgradeable package requires installed instance) [__2] fail (backjumping, conflict set: clod, ghc, polysemy-plugin) After searching the rest of the dependency tree exhaustively, these were the goals I've had most trouble fulfilling: ghc, clod, polysemy-plugin