Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: graphics-formats-collada (user goal)
rejecting: graphics-formats-collada-0.3.1, 0.3.0 (global constraint requires
==0.2.0)
trying: graphics-formats-collada-0.2.0
next goal: base (dependency of graphics-formats-collada-0.2.0)
rejecting: base-4.7.0.1/installed-e4b... (conflict: base =>
ghc-prim==0.3.1.0/installed-954..., graphics-formats-collada =>
ghc-prim==0.1.*)
rejecting: base-4.8.0.0, 4.7.0.2, 4.7.0.1, 4.7.0.0, 4.6.0.1, 4.6.0.0, 4.5.1.0,
4.5.0.0, 4.4.1.0, 4.4.0.0, 4.3.1.0, 4.3.0.0, 4.2.0.2, 4.2.0.1, 4.2.0.0,
4.1.0.0, 4.0.0.0, 3.0.3.2, 3.0.3.1 (global constraint requires installed
instance)
Dependency tree exhaustively searched.