[Haskell-cafe] How to cabal fetch mtl==

Iain Alexander ia at stryx.demon.co.uk
Mon Nov 29 01:51:37 CET 2010

"Albert Y. C. Lai" <trebla at vex.net> suggested
> cabal fetch mtl-

C:\Documents and Settings\Iain Alexander>cabal fetch mtl-
Resolving dependencies...
cabal: internal error: could not construct a valid install plan.
The proposed (invalid) plan contained the following problems:
The following packages are involved in a dependency cycle transformers-,
special-functors-1.0, mtl-
Iain Alexander      ia at stryx.demon.co.uk

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