在这个似乎涉及 xsbt-web-plugin 的奇怪案例中，我得到了错误
unresolved dependency: play#play-json_2.10;2.2-SNAPSHOT: not found
加载server子项目时。依赖项和正确的解析器在library子项目中指定，这server取决于。如果我不包含webSettings在服务器中，它不会爆炸，但我正在尝试在那里建立一个 .war 。
[根]/project/Build.scala
import sbt._
import Keys._
object MyBuild extends Build {
lazy val root = Project("root", base = file(".")).aggregate(library,server)
lazy val library = Project(id = "library", base = file("library"))
lazy val server = Project(id = "server", base = file("server")).dependsOn(library)
}
[根]/project/plugins.sbt
// p.s. why do I need this here instead of [root]/server/project/plugins.sbt?
addSbtPlugin("com.earldouglas" % "xsbt-web-plugin" % "0.3.0")
[根]/库/build.sbt
scalaVersion := "2.10.1"
libraryDependencies += "play" %% "play-json" % "2.2-SNAPSHOT"
resolvers += "Mandubian repository snapshots" at "https://github.com/mandubian/mandubian-mvn/raw/master/snapshots/"
[根]/server/build.sbt
scalaVersion := "2.10.1"
seq(webSettings :_*)