[Yhc] Incomprehensible error messages

[David Fox]

On 6/4/07, Stefan O'Rear <stefanor at cox.net> wrote:
> On Mon, Jun 04, 2007 at 04:12:46PM -0700, David Fox wrote:
> > On 6/4/07, Stefan O'Rear <stefanor at cox.net> wrote:
> > >On Mon, Jun 04, 2007 at 12:05:56PM -0700, David Fox wrote:
> > >Works fine in both GHC and Hugs.  I don't think this bug will be fixed,
> > >because the current typechecker is already on the chopping block (see
> > >Matthieu's SoC project).  So just wait a few months, or help.
> > >
> > >Stefan
> >
> > Where do I see Matthieu's SoC project?  I scanned the last six months
> > of the YHC mailing list, maybe I missed it.
>
> http://code.google.com/soc/haskell/appinfo.html?csaid=AB859DA837B7BDCD
>
> Stefan

What I was wondering is what those "No default for  Main.CNode"
messages would be expected to mean.  Maybe if I could supply the
default it claims is missing I could work around this problem.
Presumably people are using type classes without constantly running
into this problem.