Resolving dependencies...
cabal: Could not resolve dependencies:
trying: parsec-3.1.11 (dependency of persistent-0.1.0)
next goal: web-routes-quasi (dependency of persistent-0.1.0)
rejecting: web-routes-quasi-0.7.1.1, web-routes-quasi-0.7.1,
web-routes-quasi-0.7.0.1, web-routes-quasi-0.7.0, web-routes-quasi-0.6.3.1,
web-routes-quasi-0.6.3, web-routes-quasi-0.6.2, web-routes-quasi-0.6.1.3,
web-routes-quasi-0.6.1.2, web-routes-quasi-0.6.1.1, web-routes-quasi-0.6.1,
web-routes-quasi-0.6.0.1, web-routes-quasi-0.6.0 (conflict: persistent =>
web-routes-quasi>=0.5.0 && <0.6)
trying: web-routes-quasi-0.5.0
next goal: web-routes (dependency of web-routes-quasi-0.5.0)
rejecting: web-routes-0.27.11, web-routes-0.27.10, web-routes-0.27.9,
web-routes-0.27.8, web-routes-0.27.7, web-routes-0.27.6, web-routes-0.27.5,
web-routes-0.27.4, web-routes-0.27.3, web-routes-0.27.2, web-routes-0.27.1,
web-routes-0.26.3, web-routes-0.26.2, web-routes-0.25.3, web-routes-0.25.2,
web-routes-0.25.1, web-routes-0.24.1, web-routes-0.23.4, web-routes-0.23.2,
web-routes-0.23.1, web-routes-0.23.0 (conflict: web-routes-quasi =>
web-routes>=0.22 && <0.23)
rejecting: web-routes-0.22.0 (conflict: parsec==3.1.11, web-routes =>
parsec>=2 && <3)
Dependency tree exhaustively searched.