addSbtPlugin("org.lyranthe.sbt" % "partial-unification" % "1.1.0") in project/plugins.sbt. When running sbt I get
[warn] :: UNRESOLVED DEPENDENCIES ::
[warn] ::::::::::::::::::::::::::::::::::::::::::::::
[warn] :: org.lyranthe.sbt#partial-unification;1.1.0: not found
[warn] ::::::::::::::::::::::::::::::::::::::::::::::
Resolving dependencies through Artifactory. Scala version 2.11.12. sbt.version=1.2.0