Resolving dependencies...
cabal: Could not resolve dependencies:
trying: base-4.9.0.0/installed-4.9... (dependency of salvia-extras-0.1)
next goal: salvia (dependency of salvia-extras-0.1)
rejecting: salvia-1.0.0, salvia-0.1.2, salvia-0.1.1 (conflict: salvia-extras
=> salvia==0.1)
trying: salvia-0.1
next goal: mtl (dependency of salvia-0.1)
rejecting: mtl-2.2.1, mtl-2.2.0.1, mtl-2.2, mtl-2.1.3.1, mtl-2.1.2, mtl-2.1.1,
mtl-2.1, mtl-2.0.1.1, mtl-2.0.1.0, mtl-2.0.0.0, mtl-1.1.1.1, mtl-1.1.1.0
(conflict: salvia => mtl==1.1.0.2)
rejecting: mtl-1.1.0.2 (conflict: base==4.9.0.0/installed-4.9..., mtl =>
base<4.3)
rejecting: mtl-1.1.0.1, mtl-1.1.0.0, mtl-1.0 (conflict: salvia =>
mtl==1.1.0.2)
Dependency tree exhaustively searched.