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## What steps will reproduce the problem?
I attempt
cabal install git-annex
(already having installed `c2hs`)
## What is the expected output? What do you see instead?
I get
$ cabal install git-annex
Resolving dependencies...
cabal: Could not resolve dependencies:
trying: git-annex-3.20130216.1 (user goal)
trying: git-annex-3.20130216.1:+webapp
trying: git-annex-3.20130216.1:+assistant
trying: yesod-1.1.9 (dependency of git-annex-3.20130216.1:+assistant)
trying: http-conduit-1.9.0 (dependency of yesod-1.1.9)
trying: regex-compat-0.95.1/installed-851... (dependency of
http-conduit-1.9.0)
next goal: regex-base (dependency of regex-compat-0.95.1/installed-851...)
rejecting: regex-base-0.93.2/installed-999... (conflict: regex-base =>
mtl==2.0.1.0/installed-db1..., git-annex => mtl(>=2.1.1))
rejecting: regex-base-0.93.2, 0.93.1, 0.93, 0.92, 0.91, 0.90, 0.83, 0.72.0.2,
0.72.0.1, 0.71 (conflict: regex-compat => regex-base==0.93.2/installed-999...)
> This is a transient version skew in cabal, generally
> known as "cabal hell". It will be fixed when the libraries
> involved fix their versioned dependencies, which may have
> already happened. Precompiled builds of git-annex are provided
> so I do not have to chase every transient version skew
> that occurs for every use who runs into it. [[done]] --[[Joey]]
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