Can someone point out what I am doing wrong? Thanks, Dominic. [dom at tility Codec]$ haddock Codec/Utils.hs --read-interface=http://www.haskell.org/ghc/docs/latest/html/base,/usr/share/doc/ghc-6.4/libraries/base/base.haddock Warning: Codec.Utils: the following names could not be resolved: Integral Word8 Int