[Haskell-cafe] Installing gloss

[Richard O'Keefe]

Gloss having been mentioned, I thought I'd look into it.

m% cabal install gloss
Resolving dependencies...
cabal: cannot configure gloss-1.6.1.1. It requires base ==4.5.*
For the dependency on base ==4.5.* there are these packages: base-4.5.0.0.
However none of them are available.
base-4.5.0.0 was excluded because of the top level dependency base -any

What did I do wrong?