Resolving dependencies...
cabal: Could not resolve dependencies:
trying: ihaskell-diagrams-0.2.0.0 (user goal)
trying: ihaskell-0.6.0.0 (dependency of ihaskell-diagrams-0.2.0.0)
next goal: transformers (dependency of ihaskell-0.6.0.0)
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 ihaskell-0.6.0.0)
rejecting: ghc-7.8.3/installed-4df... (conflict: transformers==0.4.3.0, ghc =>
transformers==0.3.0.0/installed-16a...)
Backjump limit reached (change with --max-backjumps).