[Haskell-beginners] Issue installing reactive-banana-5.0.0.1

[Brent Yorgey]

try

  cabal install reactive-banana --constraint='mtl < 2.1'

-Brent

On Fri, Apr 27, 2012 at 11:19:39PM +0100, Miguel Negrao wrote:
> Hi
> 
> It appears I can’t install reactive-banana-5.0.0.1:
> 
> cabal install reactive-banana
> Resolving dependencies...
> cabal: cannot configure mtl-2.1. It requires transformers ==0.3.*
> For the dependency on transformers ==0.3.* there are these packages:
> transformers-0.3.0.0. However none of them are available.
> transformers-0.3.0.0 was excluded because reactive-banana-0.5.0.1 requires
> transformers ==0.2.*
> 
> How can I solve this ?
> 
> thank you,
> Miguel
> 
> 
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