Re: [Haskell-cafe] Error on instance of Control.Exception.Exception

On Sun, Feb 22, 2009 at 9:41 PM, Maurí­cio wrote:

www.haskell.org/ghc/docs/latest/html/libraries/base/Control-Exception.html

These are the docs for the latest GHC version.

Type constructor `Exception' used as a class In the instance declaration for `Exception DbError'

What GHC version do you have? Old base packages (< 4, IIRC) don't have extensible exceptions and 'Exception' is just an ADT. HTH, -- Felipe.