Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: snap-extras (user goal)
rejecting: snap-extras-0.11.0.2, snap-extras-0.11.0.1, snap-extras-0.11,
snap-extras-0.9, snap-extras-0.7, snap-extras-0.6 (constraint from user target
requires ==0.4)
trying: snap-extras-0.4
trying: base-4.9.0.0/installed-4.9... (dependency of snap-extras-0.4)
trying: transformers-0.5.2.0/installed-0.5... (dependency of snap-extras-0.4)
trying: lens-4.15.1 (dependency of snap-1.0.0.1)
next goal: mtl (dependency of snap-extras-0.4)
rejecting: mtl-2.2.1, mtl-2.2.0.1, mtl-2.2 (conflict: snap-extras => mtl>=2.0
&& <2.2)
rejecting: mtl-2.1.3.1, mtl-2.1.2 (conflict:
transformers==0.5.2.0/installed-0.5..., mtl => transformers==0.3.*)
rejecting: mtl-2.1.1, mtl-2.1 (conflict: base==4.9.0.0/installed-4.9..., mtl
=> base<4.6)
rejecting: mtl-2.0.1.1 (conflict: transformers==0.5.2.0/installed-0.5..., mtl
=> transformers==0.2.*)
rejecting: mtl-2.0.1.0 (conflict: base==4.9.0.0/installed-4.9..., mtl =>
base<4.6)
rejecting: mtl-2.0.0.0 (conflict: lens => mtl>=2.0.1 && <2.3)
rejecting: mtl-1.1.1.1, mtl-1.1.1.0, mtl-1.1.0.2, mtl-1.1.0.1, mtl-1.1.0.0,
mtl-1.0 (conflict: snap-extras => mtl>=2.0 && <2.2)
Backjump limit reached (currently 2000, change with --max-backjumps or try to
run with --reorder-goals).