project/Dependencies.scala not accessible from plugins.sbt

问题

I'm unable to reference the object Dependencies from within plugins.sbt on compile getting the error error: not found: value Dependencies

/project/plugins.sbt
/project/Dependencies.sbt

Depencies.scala is just a collection of objects

object Dependencies { 
  object Play {
    ...
    val sbtPlugin = "..." 
...

Similarly I use it in ./build.sbt to add libraryDependencies without problems:

lazy val root = (project in file("."))
  .enablePlugins(PlayScala)
  .settings(libraryDependencies += Seq(
    Dependencies.Play.dependencies, ...

Thanks for any ideas, I'm curious more than anything why build.sbt can access project folder resources

回答1:

If you want a dependencies files to be accessible from project/plugins.sbt then you need to put it into project/project/Dependencies.scala.

(I'm assuming your file is called Dependencies.scala, not Dependencies.sbt or Depencies.scala as shown in your question.)

In general somedir/*.sbt files can access .scala files in somedir/project/*.scala.

来源：https://stackoverflow.com/questions/47143350/project-dependencies-scala-not-accessible-from-plugins-sbt