Resolving dependencies... cabal: Could not resolve dependencies: next goal: Hoed (user goal) rejecting: Hoed-0.3.0, 0.2.2 (global constraint requires ==0.2.1) trying: Hoed-0.2.1 trying: directory-1.2.2.0/installed-258... (dependency of Hoed-0.2.1) trying: unix-2.7.1.0/installed-643... (dependency of directory-1.2.2.0/installed-258...) trying: bytestring-0.10.6.0/installed-236... (dependency of unix-2.7.1.0/installed-643...) next goal: threepenny-gui (dependency of Hoed-0.2.1) rejecting: threepenny-gui-0.6.0.4, 0.6.0.3, 0.6.0.2, 0.6.0.1 (conflict: Hoed => threepenny-gui==0.5.*) rejecting: threepenny-gui-0.5.0.0 (conflict: bytestring => deepseq==1.4.1.1/installed-8fb..., threepenny-gui => deepseq==1.3.*) rejecting: threepenny-gui-0.4.2.0, 0.4.1.0, 0.4.0.2, 0.4.0.1, 0.4.0.0, 0.3.0.1, 0.3.0.0, 0.2.0.1, 0.2.0.0, 0.1.0.1, 0.1.0.0 (conflict: Hoed => threepenny-gui==0.5.*) Backjump limit reached (change with --max-backjumps).