Resolving dependencies... cabal: Could not resolve dependencies: next goal: Lambdajudge (user goal) rejecting: Lambdajudge-1.0.0.4, Lambdajudge-1.0.0.3 (constraint from user target requires ==1.0.0.2) trying: Lambdajudge-1.0.0.2 trying: base-4.9.0.0/installed-4.9... (dependency of Lambdajudge-1.0.0.2) next goal: process (dependency of Lambdajudge-1.0.0.2) rejecting: process-1.4.2.0/installed-1.4..., process-1.4.2.0, process-1.4.1.0, process-1.4.0.0, process-1.3.0.0 (conflict: Lambdajudge => process>=1.2.3.0 && <1.3.0.0) rejecting: process-1.2.3.0 (conflict: base==4.9.0.0/installed-4.9..., process => base>=4.4 && <4.9) rejecting: process-1.2.2.0, process-1.2.1.0, process-1.2.0.0, process-1.1.0.2, process-1.1.0.1, process-1.1.0.0, process-1.0.1.5, process-1.0.1.4, process-1.0.1.3, process-1.0.1.2, process-1.0.1.1, process-1.0.0.0 (conflict: Lambdajudge => process>=1.2.3.0 && <1.3.0.0) Dependency tree exhaustively searched.