Resolving dependencies... cabal: Could not resolve dependencies: next goal: prove-everywhere-server (user goal) rejecting: prove-everywhere-server-0.1.1 (global constraint requires ==0.1) trying: prove-everywhere-server-0.1 trying: case-insensitive-1.2.0.5 (dependency of prove-everywhere-server-0.1) trying: deepseq-1.4.1.1/installed-8fb... (dependency of case-insensitive-1.2.0.5) next goal: time (dependency of prove-everywhere-server-0.1) rejecting: time-1.5.0.1/installed-c20..., 1.5.0.1, 1.5 (conflict: prove-everywhere-server => time==1.4.*) rejecting: time-1.4.2, 1.4.1, 1.4.0.2, 1.4.0.1, 1.4 (conflict: deepseq==1.4.1.1/installed-8fb..., time => deepseq>=1.1 && <1.4) rejecting: time-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: prove-everywhere-server => time==1.4.*) Dependency tree exhaustively searched.