如何从另一个sbt项目中引用外部sbt项目？

Question

 -> /ApplicationA
   -> /project
     -> /build.sbt
 -> /CoreLibrary
   -> /project
     -> /build.sbt

  val core = Project(
      id = "platform-core",
      base = file("../CoreLibrary"))

  val main = Project(id = "application, base = file(".")).dependsOn(core)

但是，在编译ApplicationA时，SBT抱怨依赖项只能是子目录！！：

java.lang.AssertionError: assertion failed: Directory C:\git\CoreLibrary is not contained in build root C:\git\ApplicationA

这看起来很简单，拥有这个项目依赖项的正确方法是什么？

Answer 1

您可以像这样对项目进行源依赖：

 lazy val core = RootProject(file("../CoreLibrary"))

 val main = Project(id = "application", base = file(".")).dependsOn(core) 

我有一个多模块播放构建的工作示例:https://github.com/ahoy-jon/play2multimodule/blob/master/playapp/project/build.scala

但我认为正确的方法（这取决于您的上下文）是创建一个

 -> /project/
   -> Build.scala
 -> /ApplicationA
   -> /project
     -> /build.sbt
 -> /CoreLibrary
   -> /project
     -> /build.sbt