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I follow installation steps given on http://www.yesodweb.com/book/TXKGPHUZXDLYRGF

the command "cabal install alex happy" fails with the error below.

what is wrong? I am totally new. this is my first attempt to install yesod. I am on windows xp.

thanks for any help

Konstantin

d:>cabal install alex happy
Resolving dependencies...
cabal: Couldn't read cabal file "bytestring\0.9.2.0\bytestring.cabal"

Don Stewart
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akonsu
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1 Answers1

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Hackage was triggering a bug in cabal but that has been addressed. Do a cabal update and things should build now.

fryguybob
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    thanks. that fixed it. I just installed Haskell Platform today and apparently it did not have the latest "cabal". now I am getting an error saying that I need Perl to be able to install "alex". this is ironic. For web development I am trying to switch to a language that I find superior to Perl and I still have to drag Perl with me. :) – akonsu Aug 25 '11 at 20:46