Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: maid (user goal)
rejecting: maid-2014.10.14, 2014.8.31, 2013.9.14, 2013.9.13, 2012.1.19,
2011.10.13, 2011.10.12, 2011.6.21, 2011.6.20, 2010.9.29, 2010.9.19,
2010.9.9.1, 2010.9.9, 2010.4.24 (global constraint requires ==2009.12.20)
trying: maid-2009.12.20
trying: base-4.8.1.0/installed-4f7... (dependency of maid-2009.12.20)
trying: hack-handler-happstack-2009.12.20 (dependency of maid-2009.12.20)
trying: happstack-server-7.4.5 (dependency of
hack-handler-happstack-2009.12.20)
trying: process-1.2.3.0/installed-f02... (dependency of
happstack-server-7.4.5)
next goal: haskell98 (dependency of maid-2009.12.20)
rejecting: haskell98-2.0.0.3 (conflict: base==4.8.1.0/installed-4f7...,
haskell98 => base>=4.7 && <4.8)
rejecting: haskell98-2.0.0.2 (conflict: base==4.8.1.0/installed-4f7...,
haskell98 => base==4.6.*)
rejecting: haskell98-2.0.0.1, 2.0.0.0 (conflict: process =>
directory==1.2.2.0/installed-258..., haskell98 => directory>=1.1 && <1.2)
rejecting: haskell98-1.1.0.1, 1.1.0.0, 1.0.1.1 (conflict:
base==4.8.1.0/installed-4f7..., haskell98 => base>=3 && <4.6)
rejecting: haskell98-1.0.1.0 (conflict: base==4.8.1.0/installed-4f7...,
haskell98 => base<4.6)
rejecting: haskell98-1.0 (conflict: base==4.8.1.0/installed-4f7..., haskell98
=> base<4.3)
Backjump limit reached (change with --max-backjumps).