Re: [Haskell-cafe] Problem with class Control.Monad.Error noMsg usage

On Tuesday 21 December 2010 16:40:38, Henning Thielemann wrote:

Aaron Gray schrieb:

...

if I try importing them :-

import Control.Monad.Error (noMsg, strMsg)

I think it was moved to Control.Monad.Error.Class.

But it's still re-exported from Control.Monad.Error, so they ought to be in scope. And the code works here (with an additional type signature for a reads result and {-# LANGUAGE ExistentialQuantification #-}), both with 6.12.3 and with 7.0.1.