Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: c2hsc (user goal)
rejecting: c2hsc-0.6.5, 0.6.4, 0.6.3, 0.6.2, 0.5.1, 0.5.0, 0.4.0, 0.3.3,
0.3.2, 0.3.1, 0.3.0, 0.2.0 (global constraint requires ==0.1.0)
trying: c2hsc-0.1.0
trying: base-4.8.1.0/installed-4f7... (dependency of c2hsc-0.1.0)
trying: transformers-0.4.2.0/installed-21d... (dependency of c2hsc-0.1.0)
next goal: mtl (dependency of c2hsc-0.1.0)
rejecting: mtl-2.2.1, 2.2.0.1, 2.2, 2.1.3.1, 2.1.2, 2.1.1, 2.1 (conflict:
c2hsc => mtl>=1.1 && <2.1)
rejecting: mtl-2.0.1.1 (conflict: transformers==0.4.2.0/installed-21d..., mtl
=> transformers==0.2.*)
rejecting: mtl-2.0.1.0, 2.0.0.0, 1.1.1.1, 1.1.1.0 (conflict:
base==4.8.1.0/installed-4f7..., mtl => base<4.6)
rejecting: mtl-1.1.0.2, 1.1.0.1, 1.1.0.0 (conflict:
base==4.8.1.0/installed-4f7..., mtl => base<4.3)
rejecting: mtl-1.0 (conflict: c2hsc => mtl>=1.1 && <2.1)
Dependency tree exhaustively searched.