Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: bamboo (user goal)
rejecting: bamboo-2010.2.25, 2010.1.26, 2010.1.1, 2009.11.1, 2009.8.16,
2009.6.25, 2009.6.9, 2009.6.8, 2009.6.6, 2009.5.27, 2009.5.23, 2009.5.22,
2009.5.19, 2009.5.18.2, 2009.5.18.1, 2009.5.18, 2009.5.13, 2009.4.52,
2009.4.50, 2009.4.30 (global constraint requires ==2009.4.27)
trying: bamboo-2009.4.27
trying: base-4.8.1.0/installed-4f7... (dependency of bamboo-2009.4.27)
trying: process-1.2.3.0/installed-f02... (dependency of bamboo-2009.4.27)
next goal: haskell98 (dependency of bamboo-2009.4.27)
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).