Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: sbv (user goal)
rejecting: sbv-5.13, sbv-5.12, sbv-5.11, sbv-5.10, sbv-5.9, sbv-5.8, sbv-5.7,
sbv-5.6, sbv-5.5, sbv-5.4, sbv-5.3, sbv-5.2, sbv-5.1, sbv-5.0, sbv-4.4,
sbv-4.3, sbv-4.2, sbv-4.1, sbv-4.0, sbv-3.5, sbv-3.4, sbv-3.3, sbv-3.2,
sbv-3.1, sbv-3.0, sbv-2.10, sbv-2.9, sbv-2.8, sbv-2.7, sbv-2.6, sbv-2.5,
sbv-2.4, sbv-2.3, sbv-2.2, sbv-2.1, sbv-2.0, sbv-1.4, sbv-1.3, sbv-1.2,
sbv-1.1, sbv-1.0, sbv-0.9.24, sbv-0.9.23, sbv-0.9.22, sbv-0.9.21, sbv-0.9.20,
sbv-0.9.19, sbv-0.9.18, sbv-0.9.17, sbv-0.9.16, sbv-0.9.15, sbv-0.9.14,
sbv-0.9.13, sbv-0.9.12, sbv-0.9.11, sbv-0.9.10, sbv-0.9.9, sbv-0.9.8,
sbv-0.9.7, sbv-0.9.6, sbv-0.9.5, sbv-0.9.4, sbv-0.9.3, sbv-0.9.2 (constraint
from user target requires ==0.9.1)
trying: sbv-0.9.1
trying: base-4.9.0.0/installed-4.9... (dependency of sbv-0.9.1)
trying: directory-1.2.6.2/installed-1.2... (dependency of sbv-0.9.1)
next goal: haskell98 (dependency of sbv-0.9.1)
rejecting: haskell98-2.0.0.3 (conflict: base==4.9.0.0/installed-4.9...,
haskell98 => base>=4.7 && <4.8)
rejecting: haskell98-2.0.0.2 (conflict: base==4.9.0.0/installed-4.9...,
haskell98 => base==4.6.*)
rejecting: haskell98-2.0.0.1, haskell98-2.0.0.0 (conflict:
directory==1.2.6.2/installed-1.2..., haskell98 => directory>=1.1 && <1.2)
rejecting: haskell98-1.1.0.1, haskell98-1.1.0.0, haskell98-1.0.1.1 (conflict:
base==4.9.0.0/installed-4.9..., haskell98 => base>=3 && <4.6)
rejecting: haskell98-1.0.1.0 (conflict: base==4.9.0.0/installed-4.9...,
haskell98 => base<4.6)
rejecting: haskell98-1.0 (conflict: base==4.9.0.0/installed-4.9..., haskell98
=> base<4.3)
Dependency tree exhaustively searched.