You've got two options:
1) (the easy way)
rm -rf ~/.ghc ~/.cabal
cabal update
cabal install scotty
2) (the hard way, ghc 7.6+ only)
Use a sandbox!
cd path/to/my/project/that/uses/scotty
cabal sandbox init
cabal install --only-dependencies -j # make sure scotty is a dependency of
your project
cabal configure
cabal build
3) use cabal-dev. similar to using sandboxes, but I don't have it any more
so can't give you a step-by-step.
On Tue, Nov 26, 2013 at 7:34 PM, Thiago Negri
I don't know what to do. :-( I can't install scotty or yesod.
$ cabal install scotty cabal: Could not resolve dependencies: trying: scotty-0.5.0 (user goal) trying: base-4.7.0.0/installed-dc1... (dependency of scotty-0.5.0) trying: wai-extra-1.3.4.6 (dependency of scotty-0.5.0) trying: stringsearch-0.3.6.4 (dependency of wai-extra-1.3.4.6) rejecting: stringsearch-0.3.6.4:-base3 (conflict: base==4.7.0.0/installed-dc1..., stringsearch-0.3.6.4:base3 => base>=2 && <3) rejecting: stringsearch-0.3.6.4:+base3 (conflict: base==4.7.0.0/installed-dc1..., stringsearch-0.3.6.4:base3 => base>=3 && <4) Backjump limit reached (change with --max-backjumps).
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