I answered on Stack Overflow, but copying here:
This looks like a typical cabal dependency solver shortcoming. Can you try
running again with `--max-backjumps=-1 --reorder-goals`?
On Wed, Jun 24, 2015 at 7:07 AM Philip White
Hello, all,
I am trying to make the next big thing with Yesod -- but for now, just a Hello World website. After getting it running locally, I tried to integrate it with Circle CI, which has support for cabal-based Haskell projects.
Circle CI runs the following commands: cabal sandbox init cabal install --upgrade-dependencies --constraint="template-haskell installed" --dependencies-only --enable-tests
With this invocation, cabal cannot resolve dependencies no matter how I change the cabal config. If, however, I run just `cabal install`, everything works.
This cabal failure occurs both on a CircleCI host and my laptop exactly the same way, so I know it's not my environment.
I wrote a StackOverflow question with more details: http://stackoverflow.com/questions/31010999/cabal-cannot-resolve-dependencie...
The github repo, for ease of reproducing the problem: https://github.com/philipmw/yesod-website
I hope that someone on the list is able to help. Thanks.
-- Philip _______________________________________________ Libraries mailing list Libraries@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/libraries