Resolving dependencies... cabal: Could not resolve dependencies: next goal: reactive-banana-wx (user goal) rejecting: reactive-banana-wx-0.8.0.4, 0.8.0.0, 0.7.1.0, 0.7.0.0, 0.6.0.1, 0.6.0.0, 0.5.0.0 (global constraint requires ==0.4.3.2) trying: reactive-banana-wx-0.4.3.2 next goal: wxcore (dependency of reactive-banana-wx-0.4.3.2) rejecting: wxcore-0.91.0.0, 0.90.1.1, 0.90.1.0, 0.90.0.3, 0.90.0.1, 0.90, 0.13.2.3, 0.13.2.1, 0.13.2 (conflict: reactive-banana-wx => wxcore>=0.12.1.7 && <0.12.2) trying: wxcore-0.12.1.7 trying: containers-0.5.5.1/installed-23e... (dependency of wxcore-0.12.1.7) next goal: reactive-banana (dependency of reactive-banana-wx-0.4.3.2) rejecting: reactive-banana-0.8.1.2, 0.8.1.1, 0.8.1.0, 0.8.0.4, 0.8.0.3, 0.8.0.2, 0.8.0.1, 0.8.0.0, 0.7.1.3, 0.7.1.2, 0.7.1.1, 0.7.1.0, 0.7.0.1, 0.7.0.0, 0.6.0.0, 0.5.0.3, 0.5.0.2, 0.5.0.1, 0.5.0.0 (conflict: reactive-banana-wx => reactive-banana>=0.4.3.0 && <0.5) rejecting: reactive-banana-0.4.3.2 (conflict: containers==0.5.5.1/installed-23e..., reactive-banana => containers>=0.3 && <0.5) rejecting: reactive-banana-0.4.3.1, 0.4.3.0 (conflict: containers==0.5.5.1/installed-23e..., reactive-banana => containers==0.4.*) rejecting: reactive-banana-0.4.2.0, 0.4.1.1, 0.4.1.0, 0.4.0.0, 0.3.0.1, 0.3.0.0, 0.2.0.3, 0.2.0.2, 0.2.0.1, 0.2.0.0, 0.1.0.2, 0.1.0.0 (conflict: reactive-banana-wx => reactive-banana>=0.4.3.0 && <0.5) Dependency tree exhaustively searched.