Resolving dependencies...
cabal: Could not resolve dependencies:
trying: ihaskell-diagrams-0.2.0.0 (user goal)
trying: ihaskell-0.5.0.0 (dependency of ihaskell-diagrams-0.2.0.0)
trying: transformers-0.3.0.0/installed-16a... (dependency of ihaskell-0.5.0.0)
next goal: shelly (dependency of ihaskell-0.5.0.0)
rejecting: shelly-1.6.0 (conflict: ihaskell => shelly==1.5.*)
trying: shelly-1.5.7
trying: transformers-base-0.4.4 (dependency of shelly-1.5.7)
trying: transformers-compat-0.3.3.4 (dependency of transformers-base-0.4.4)
trying: transformers-compat-0.3.3.4:-two
rejecting: transformers-compat-0.3.3.4:-three (conflict:
transformers==0.3.0.0/installed-16a..., transformers-compat-0.3.3.4:three =>
transformers>=0.4.1 && <0.5)
rejecting: transformers-compat-0.3.3.4:+three (manual flag can only be changed
explicitly)
Backjump limit reached (change with --max-backjumps).