Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: hsp (user goal)
rejecting: hsp-0.10.0, 0.9.2, 0.9.1, 0.9.0, 0.8.0, 0.7.3 (global constraint
requires ==0.7.2)
trying: hsp-0.7.2
trying: ghc-7.8.3/installed-4df... (dependency of hsp-0.7.2)
trying: hsp-0.7.2:+base4
trying: hsp-0.7.2:+ghc76
next goal: old-exception (dependency of hsp-0.7.2:+ghc76)
fail (unknown package: old-exception)
rejecting: hsp-0.7.2:-ghc76 (conflict: ghc==7.8.3/installed-4df...,
hsp-0.7.2:ghc76 => ghc<7.6)
Dependency tree exhaustively searched.