Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: ghcjs-websockets (user goal)
rejecting: ghcjs-websockets-0.3.0.3, 0.3.0.2 (global constraint requires
==0.3.0.1)
trying: ghcjs-websockets-0.3.0.1
next goal: ghcjs-base (dependency of ghcjs-websockets-0.3.0.1)
Dependency tree exhaustively searched.