Add the following settings to the Play project:
sources in (Compile,doc) := Seq.empty
publishArtifact in (Compile, packageDoc) := false
With the change it should be as follows:
play.Project(appName, appVersion, appDependencies)
.settings(scalaVersion := "2.10.3")
.settings(jsSettings : _*)
.settings(
publishArtifact in (Compile, packageDoc) := false,
publishArtifact in packageDoc := false,
sources in (Compile,doc) := Seq.empty
)
Thanks @peter-hilton for the comment!