How can i use scalatex-site in build.sbt?

[mcdoyaji]

I can't access Site type trait inside build.sbt.

i tried direct import. but it's not working.

what do i need to use scala-site?

below is code.

plugins.sbt

addSbtPlugin("com.lihaoyi" % "scalatex-sbt-plugin" % "0.3.9")

build.sbt

......
libraryDependencies += "com.lihaoyi" % "scalatex-site_2.12" % "0.3.9"

scalatex.SbtPlugin.projectSettings

// quick settings
// http://www.lihaoyi.com/Scalatex/#QuickStartq
lazy val readme = scalatex
  .ScalatexReadme(
    projectId = "readme",
    wd = file(""),
    url = "https://github.com/baram204/learningPixi/tree/master",
    source = "Readme")

lazy val site = new scalatex.site.Site {
  def content = Map("index.html" -> (defaultHeader, Hello()))
}
site.renderTo(wd/'site/'target/'output)
......