Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: ihaskell-rlangqq (user goal)
rejecting: ihaskell-rlangqq-0.3.0.0, ihaskell-rlangqq-0.2.2.0,
ihaskell-rlangqq-0.2.1.1 (constraint from user target requires ==0.2.0.1)
trying: ihaskell-rlangqq-0.2.0.1
trying: base-4.9.0.0/installed-4.9... (dependency of ihaskell-rlangqq-0.2.0.1)
next goal: ihaskell-blaze (dependency of ihaskell-rlangqq-0.2.0.1)
rejecting: ihaskell-blaze-0.3.0.0 (conflict: ihaskell-rlangqq =>
ihaskell-blaze>=0.2 && <0.3)
rejecting: ihaskell-blaze-0.2.0.0 (conflict: base==4.9.0.0/installed-4.9...,
ihaskell-blaze => base==4.6.* || ==4.7.*)
rejecting: ihaskell-blaze-0.1.0.0 (conflict: ihaskell-rlangqq =>
ihaskell-blaze>=0.2 && <0.3)
Dependency tree exhaustively searched.