Resolving dependencies... cabal: Could not resolve dependencies: trying: base-4.9.0.0/installed-4.9... (dependency of lambdacms-core-0.1.0.0) next goal: directory (dependency of fast-logger-2.4.7) rejecting: directory-1.2.6.2/installed-1.2... (conflict: directory => time==1.6.0.1/installed-1.6..., lambdacms-core => time>=1.4.2 && <1.5) trying: directory-1.3.0.0 trying: conduit-extra-1.1.15 (dependency of monad-logger-0.3.20.1) next goal: process (dependency of conduit-extra-1.1.15) rejecting: process-1.4.2.0/installed-1.4... (conflict: directory==1.3.0.0, process => directory==1.2.6.2/installed-1.2...) rejecting: process-1.4.2.0, process-1.4.1.0, process-1.4.0.0 (conflict: directory==1.3.0.0, process => directory>=1.1 && <1.3) rejecting: process-1.3.0.0, process-1.2.3.0, process-1.2.2.0, process-1.2.1.0 (conflict: base==4.9.0.0/installed-4.9..., process => base>=4.4 && <4.9) rejecting: process-1.2.0.0 (conflict: base==4.9.0.0/installed-4.9..., process => base>=4.4 && <4.8) rejecting: process-1.1.0.2 (conflict: directory==1.3.0.0, process => directory>=1.0 && <1.3) rejecting: process-1.1.0.1, process-1.1.0.0, process-1.0.1.5, process-1.0.1.4 (conflict: directory==1.3.0.0, process => directory>=1.0 && <1.2) rejecting: process-1.0.1.3, process-1.0.1.2, process-1.0.1.1 (conflict: directory==1.3.0.0, process => directory>=1.0 && <1.1) rejecting: process-1.0.0.0 (conflict: base==4.9.0.0/installed-4.9..., process => base<4.3) Backjump limit reached (currently 2000, change with --max-backjumps or try to run with --reorder-goals).