Resolving dependencies...
cabal: Could not resolve dependencies:
trying: plugins-1.5.5.0 (dependency of lambdabot-4.1)
next goal: ghc (dependency of plugins-1.5.5.0)
rejecting: ghc-8.0.1.20161018/installed-8.0... (conflict: plugins => ghc>=6.10
&& <8.0)
Dependency tree exhaustively searched.