Resolving dependencies... cabal: Could not resolve dependencies: next goal: uacpid (user goal) rejecting: uacpid-1.2, uacpid-1.1, uacpid-1.0.3.0, uacpid-1.0.1, uacpid-0.0.4 (constraint from user target requires ==0.0.3) trying: uacpid-0.0.3 trying: base-4.9.0.0/installed-4.9... (dependency of uacpid-0.0.3) next goal: unix (dependency of uacpid-0.0.3) rejecting: unix-2.7.2.0/installed-2.7... (conflict: unix => time==1.6.0.1/installed-1.6..., uacpid => time<1.5) trying: unix-2.7.2.1 trying: bytestring-0.10.8.1/installed-0.1... (dependency of unix-2.7.2.1) next goal: time (dependency of uacpid-0.0.3) rejecting: time-1.6.0.1/installed-1.6..., time-1.7, time-1.6.0.1, time-1.6, time-1.5.0.1, time-1.5 (conflict: uacpid => time<1.5) rejecting: time-1.4.2, time-1.4.1 (conflict: bytestring => deepseq==1.4.2.0/installed-1.4..., time => deepseq>=1.1 && <1.4) rejecting: time-1.4.0.2 (conflict: base==4.9.0.0/installed-4.9..., time => base>=4.4 && <4.7) rejecting: time-1.4.0.1, time-1.4 (conflict: base==4.9.0.0/installed-4.9..., time => base<4.7) rejecting: time-1.3, time-1.2.0.5, time-1.2.0.4, time-1.2.0.3, time-1.2.0.2, time-1.2.0.1 (conflict: base==4.9.0.0/installed-4.9..., time => base>=4 && <4.7) rejecting: time-1.2 (conflict: base==4.9.0.0/installed-4.9..., time => base<0) rejecting: time-1.1.4, time-1.1.3, time-1.1.2.4, time-1.1.2.3, time-1.1.2.2, time-1.1.2.1, time-1.1.2.0, time-1.0 (conflict: unix => time>=1.2 && <1.8) Dependency tree exhaustively searched.