Hi all, here's a curious problem:
I've found that if I already have issued (from a fresh darcs pull):
$ cabal-dev install ./wx ./wxcore ./wxdirect
I can compile (with "ghc -package-conf ..") and run some test code
successfully.
But then, if I do:
$ cabal-dev install ./wxcore
When I try to compile the same test code (still with "ghc -package-conf ..")
I get a bunch of "Ambiguous occurrence" errors[1].
Sure enough, you can:
$ cabal-dev install ./wx
And you'll see that the test code compile now works again.
As a workaround I now always use:
$ cabal-dev install ./wx ./wxcore
But I wondered if this points to an underlying problem, or if someone can
explain why it happens?
Dave,
[1] For example:
PropertyGrid.hs:35:29:
Ambiguous occurrence `container'
It could refer to either `Graphics.UI.WX.container',
imported from Graphics.UI.WX at
PropertyGrid.hs:6:1-21
or `Graphics.UI.WXCore.container',
imported from Graphics.UI.WXCore at
PropertyGrid.hs:7:1-25
PropertyGrid.hs:35:43:
Ambiguous occurrence `margin'
It could refer to either `Graphics.UI.WX.margin',
imported from Graphics.UI.WX at
PropertyGrid.hs:6:1-21
or `Graphics.UI.WXCore.margin',
imported from Graphics.UI.WXCore at
PropertyGrid.hs:7:1-25
PropertyGrid.hs:36:29:
Ambiguous occurrence `column'
It could refer to either `Graphics.UI.WX.column',
imported from Graphics.UI.WX at
PropertyGrid.hs:6:1-21
or `Graphics.UI.WXCore.column',
imported from Graphics.UI.WXCore at
PropertyGrid.hs:7:1-25
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