can't jetty:start on latest update

[Esardes]

I'm using sbt 0.13.10, Scala 2.12.4, and Scalatra 2.6.2 When forcing AWScala to 0.6.2, I can jetty:start normally from sbt. With 0.6.3, it fails with error in attached file error.txt

It seems something is wrong with joda-converter 2.0 jar ? AWScala 0.6.3 is my only dependency using it (others use 1.8-). Sorry if it's not the right place and I should report it elsewhere!