I am getting unresolved dependencies errors when trying to use slick or play-slick with Play Framework 2.2.2, sbt 0.13.0 and Scala 2.10.3 on Mac OS X Mavericks.
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Very hard to tell if this really was what fixed the problem but it is now working for me.
cd ~
brew uninstall sbt
brew uninstall play
mv .sbt .sbtold
mv .ivy2 .ivy2old
brew install sbt
brew install play
sbt
play
sbt clean
I think that my sbt or ivy repositories had become corrupted and this resulted in them being rebuilt.