Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: mueval (user goal)
rejecting: mueval-0.9.1.1, 0.9.1, 0.9, 0.8.2 (global constraint requires
==0.8.1)
trying: mueval-0.8.1
trying: hint-0.4.2.3 (dependency of mueval-0.8.1)
trying: exceptions-0.8.0.2 (dependency of hint-0.4.2.3)
next goal: transformers (dependency of exceptions-0.8.0.2)
rejecting: transformers-0.3.0.0/installed-16a... (conflict:
transformers-compat-0.4.0.4:three => transformers>=0.4.1 && <0.5)
trying: transformers-0.4.3.0
next goal: ghc (dependency of hint-0.4.2.3)
rejecting: ghc-7.8.3/installed-4df... (conflict: transformers==0.4.3.0, ghc =>
transformers==0.3.0.0/installed-16a...)
Dependency tree exhaustively searched.