Resolving dependencies... cabal: Could not resolve dependencies: next goal: fpco-api (user goal) rejecting: fpco-api-1.2.0.5, 1.2.0.4, 1.2.0.3, 1.2.0.2, 1.2.0.1, 1.2.0, 1.1.1.4, 1.1.1.3, 1.1.1.2, 1.1.1.1, 1.1.1, 1.1.0, 1.0.5, 1.0.4, 1.0.3, 1.0.2 (global constraint requires ==1.0.1) trying: fpco-api-1.0.1 next goal: process (dependency of fpco-api-1.0.1) rejecting: process-1.2.3.0/installed-f02..., 1.4.1.0, 1.4.0.0, 1.3.0.0, 1.2.3.0, 1.2.2.0, 1.2.1.0, 1.2.0.0 (conflict: fpco-api => process==1.1.*) trying: process-1.1.0.2 trying: unix-2.7.1.0/installed-643... (dependency of process-1.1.0.2) next goal: time (dependency of unix-2.7.1.0/installed-643...) rejecting: time-1.5.0.1/installed-c20... (conflict: time => deepseq==1.4.1.1/installed-8fb..., process => deepseq>=1.1 && <1.4) rejecting: time-1.5.0.1, 1.5, 1.4.2, 1.4.1, 1.4.0.2, 1.4.0.1, 1.4, 1.3, 1.2.0.5, 1.2.0.4, 1.2.0.3, 1.2.0.2, 1.2.0.1, 1.2, 1.1.4, 1.1.3, 1.1.2.4, 1.1.2.3, 1.1.2.2, 1.1.2.1, 1.1.2.0, 1.0 (conflict: unix => time==1.5.0.1/installed-c20...) Backjump limit reached (change with --max-backjumps).