Resolving dependencies... cabal: Could not resolve dependencies: next goal: servant-subscriber (user goal) rejecting: servant-subscriber-0.5.0.3, servant-subscriber-0.5.0.2, servant-subscriber-0.5.0.1, servant-subscriber-0.5.0.0, servant-subscriber-0.4.0.0, servant-subscriber-0.3.0.0, servant-subscriber-0.2.0.1, servant-subscriber-0.2.0.0, servant-subscriber-0.1.0.2, servant-subscriber-0.1.0.1 (constraint from user target requires ==0.1.0.0) trying: servant-subscriber-0.1.0.0 trying: base-4.9.0.0/installed-4.9... (dependency of servant-subscriber-0.1.0.0) next goal: purescript-bridge (dependency of servant-subscriber-0.1.0.0) rejecting: purescript-bridge-0.8.0.0, purescript-bridge-0.7.0.1, purescript-bridge-0.7.0.0 (conflict: servant-subscriber => purescript-bridge>=0.6 && <0.7) rejecting: purescript-bridge-0.6.0.2, purescript-bridge-0.6.0.1, purescript-bridge-0.6.0.0 (conflict: base==4.9.0.0/installed-4.9..., purescript-bridge => base>=4.8 && <4.9) rejecting: purescript-bridge-0.4.0.0, purescript-bridge-0.3.2.0, purescript-bridge-0.3.1.1, purescript-bridge-0.3.1.0, purescript-bridge-0.3.0.6, purescript-bridge-0.3.0.5, purescript-bridge-0.3.0.4, purescript-bridge-0.3.0.3, purescript-bridge-0.3.0.2, purescript-bridge-0.3.0.0, purescript-bridge-0.1.0.0 (conflict: servant-subscriber => purescript-bridge>=0.6 && <0.7) Dependency tree exhaustively searched.