UNRESOLVED DEPENDENCIES: org.scala-lang#scala-library;2.10.6

[Hubbitus]

$ sbt clean package
Picked up _JAVA_OPTIONS: -Dawt.useSystemAAFontSettings=on -Dswing.aatext=true -Dsun.java2d.pmoffscreen=false -XX:+UseCompressedOops -XX:+DoEscapeAnalysis -XX:+AggressiveOpts -XX:+EliminateLocks -XX:+UseNUMA -XX:+TieredCompilation
Getting org.scala-sbt sbt 0.13.9 ...

:: problems summary ::
:::: WARNINGS
                ::::::::::::::::::::::::::::::::::::::::::::::

                ::          UNRESOLVED DEPENDENCIES         ::

                ::::::::::::::::::::::::::::::::::::::::::::::

                :: org.scala-lang#scala-library;2.10.6: configuration not found in org.scala-lang#scala-library;2.10.6: 'master'. It was required from org.scala-tools.sbinary#sbinary_2.10;0.4.2 default

                ::::::::::::::::::::::::::::::::::::::::::::::



:: USE VERBOSE OR DEBUG MESSAGE LEVEL FOR MORE DETAILS
unresolved dependency: org.scala-lang#scala-library;2.10.6: configuration not found in org.scala-lang#scala-library;2.10.6: 'master'. It was required from org.scala-tools.sbinary#sbinary_2.10;0.4.2 default
Error during sbt execution: Error retrieving required libraries
  (see /home/pasha/.sbt/boot/update.log for complete log)
Error: Could not retrieve sbt 0.13.9

[mmolimar]

Could you try it again? Sometimes the proxy doesn't work properly and you have to try several times to download the dependency...