Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: yesod-comments (user goal)
rejecting: yesod-comments-0.9.2, 0.9.1, 0.9.0, 0.8.3, 0.8.2, 0.8.1, 0.8.0,
0.7.1, 0.7, 0.5.0 (global constraint requires ==0.4.0)
trying: yesod-comments-0.4.0
trying: directory-1.2.1.0/installed-4c4... (dependency of
yesod-comments-0.4.0)
trying: unix-2.7.0.1/installed-0d8... (dependency of
directory-1.2.1.0/installed-4c4...)
next goal: persistent (dependency of yesod-comments-0.4.0)
rejecting: persistent-2.1.6, 2.1.5, 2.1.4, 2.1.3, 2.1.2, 2.1.1.7, 2.1.1.6,
2.1.1.5, 2.1.1.4, 2.1.1.3, 2.1.1.2, 2.1.1.1, 2.1.1, 2.1.0.2, 2.1.0.1, 2.1,
2.0.8, 2.0.7.1, 2.0.7, 2.0.5.1, 2.0.5, 2.0.4, 2.0.3.1, 2.0.3, 2.0.2, 2.0.1.1,
2.0.1, 2.0.0.1, 2.0.0, 1.3.3, 1.3.2, 1.3.1.1, 1.3.1, 1.3.0.6, 1.3.0.5,
1.3.0.4, 1.3.0.3, 1.3.0.2, 1.3.0, 1.2.3.3, 1.2.3.2, 1.2.3.1, 1.2.3.0, 1.2.2.0,
1.2.1.2, 1.2.1.1, 1.2.1, 1.2.0.2, 1.2.0.1, 1.2.0, 1.1.5.1, 1.1.5, 1.1.4,
1.1.3.2, 1.1.3.1, 1.1.3, 1.1.2, 1.1.0.1, 1.1.0, 1.0.2.2, 1.0.2.1, 1.0.2,
1.0.1.3, 1.0.1.2, 1.0.1.1, 1.0.1, 1.0.0, 0.9.0.4, 0.9.0.3, 0.9.0.2, 0.9.0.1,
0.9.0, 0.8.0.2, 0.8.0.1, 0.8.0, 0.7.0.1, 0.7.0, 0.6.4.4, 0.6.4.3, 0.6.4.2,
0.6.4.1, 0.6.4, 0.6.3, 0.6.2, 0.6.1 (conflict: yesod-comments =>
persistent>=0.5 && <0.6)
rejecting: persistent-0.5.1, 0.5.0 (conflict: unix =>
bytestring==0.10.4.0/installed-9f4..., persistent => bytestring>=0.9 && <0.10)
rejecting: persistent-0.4.2, 0.4.1, 0.4.0.1, 0.4.0, 0.3.1.3, 0.3.1.2, 0.3.1.1,
0.3.1, 0.3.0.1, 0.3.0, 0.2.4.1, 0.2.4, 0.2.3, 0.2.2.2, 0.2.2.1, 0.2.2, 0.2.1,
0.2.0.2, 0.2.0.1, 0.2.0, 0.1.0, 0.0.0.1, 0.0.0 (conflict: yesod-comments =>
persistent>=0.5 && <0.6)
Dependency tree exhaustively searched.