[[!comment format=mdwn
 username="https://www.google.com/accounts/o8/id?id=AItOawnaYy6kTuKAHmsa4BtGls2oqa42Jo2w2v0"
 nickname="Pere"
 subject="I couldn't install it on Snow Leopard"
 date="2013-01-19T15:04:27Z"
 content="""
Bad news, it looks like I'm not able to install git-annex to my machine: When I run

    sudo cabal install c2hs git-annex --bindir=$HOME/bin

I get the following error:

    cabal: Error: some packages failed to install:
    DAV-0.3 failed during the building phase. The exception was:
    ExitFailure 11
    git-annex-3.20130114 depends on yesod-core-1.1.7.1 which failed to install.
    yesod-1.1.7.2 depends on yesod-core-1.1.7.1 which failed to install.
    yesod-auth-1.1.3 depends on yesod-core-1.1.7.1 which failed to install.
    yesod-core-1.1.7.1 failed during the building phase. The exception was:
    ExitFailure 11
    yesod-default-1.1.3 depends on yesod-core-1.1.7.1 which failed to install.
    yesod-form-1.2.0.2 depends on yesod-core-1.1.7.1 which failed to install.
    yesod-json-1.1.2 depends on yesod-core-1.1.7.1 which failed to install.
    yesod-persistent-1.1.0.1 depends on yesod-core-1.1.7.1 which failed to
    install.
    yesod-static-1.1.1.2 depends on yesod-core-1.1.7.1 which failed to install.

What does *ExitFailure 11* mean?
"""]]