Resolving dependencies...
cabal: Could not resolve dependencies:
trying: hack-middleware-jsonp-0.0.2.1 (user goal)
trying: base-4.8.1.0/installed-4f7... (dependency of
hack-middleware-jsonp-0.0.2.1)
trying: web-encodings-0.3.0.9 (dependency of hack-middleware-jsonp-0.0.2.1)
next goal: directory (dependency of web-encodings-0.3.0.9)
rejecting: directory-1.2.2.0/installed-258..., 1.2.4.0, 1.2.3.1, 1.2.3.0,
1.2.2.1, 1.2.2.0, 1.2.1.0, 1.2.0.1, 1.2.0.0 (conflict: web-encodings =>
directory>=1 && <1.2)
rejecting: directory-1.1.0.2 (conflict: base==4.8.1.0/installed-4f7...,
directory => base>=4.4 && <4.6)
rejecting: directory-1.1.0.1 (conflict: base==4.8.1.0/installed-4f7...,
directory => base>=4.2 && <4.5)
rejecting: directory-1.1.0.0, 1.0.1.2 (conflict:
base==4.8.1.0/installed-4f7..., directory => base>=4.2 && <4.4)
rejecting: directory-1.0.1.1, 1.0.1.0 (conflict:
base==4.8.1.0/installed-4f7..., directory => base>=4.1 && <4.3)
rejecting: directory-1.0.0.3, 1.0.0.0 (conflict:
base==4.8.1.0/installed-4f7..., directory => base<4.3)
Dependency tree exhaustively searched.