RE: [wxhaskell-users] Menues problem

[Daan L. <daa...@xs...>]

Sorry for the previous mail, I accidently hit "ctrl-enter"...

Hi Gaby

> The compiler prompts this error
> menuprincipal.hs:23: The last statement in a 'do' construct must be an
expression

You probably have a layout error. This is a general Haskell syntax
issue and you may find more information on the Haskell faq or wiki
pages. anyhow:

1) replace all you "tab" characters by whitespace
2) neatly align all the statements in the "do" expression
3) check if all parenthesis match
4) and you might even add a "return ()" statement at the
   end to be safe

and things should work ok again.

All the best,
 Daan.