Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: lhc (user goal)
rejecting: lhc-0.10, 0.8, 0.6.20090126, 0.6.20081216, 0.6.20081211.2,
0.6.20081211.1, 0.6.20081211 (global constraint requires ==0.6.20081210.1)
trying: lhc-0.6.20081210.1
trying: base-4.8.1.0/installed-4f7... (dependency of lhc-0.6.20081210.1)
trying: process-1.2.3.0/installed-f02... (dependency of lhc-0.6.20081210.1)
next goal: haskell98 (dependency of lhc-0.6.20081210.1)
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).