Scala 播放子项目不编译

以下是我的多项目Play 2.2应用程序的布局-我仍在尝试转换为build.sbt：

myApp
  + app
  + build.sbt
  + conf
  |   + routes
  + project
  |  + build.properties
  |  + Build.scala
  |  + plugin.sbt
  + modules
     + myModule
         + app
         + build.sbt
         + conf
             + routes

name := "myApp"

version := "1.0-SNAPSHOT"

organization := "com.mydomain"

lazy val myModule = project.in(file("modules/myModule"))

lazy val main = project.in(file(".")).dependsOn(myModule).aggregate(myModule)

play.Project.playScalaSettings

resolvers ++= Seq(
  Resolvers.typesafe,
  Resolvers.sonatype
)

name := "myModule"

libraryDependencies ++= Seq(
  "com.typesafe.play" %% "play" % "2.2.1" % "provided",
  "org.reactivemongo" %% "reactivemongo" % "0.10.0-SNAPSHOT",
  "org.reactivemongo" %% "play2-reactivemongo" % "0.10.0-SNAPSHOT"
)

resolvers ++= Seq(
  Resolvers.typesafe,
  Resolvers.sonatype
)

myApp/build.sbt：

myApp
  + app
  + build.sbt
  + conf
  |   + routes
  + project
  |  + build.properties
  |  + Build.scala
  |  + plugin.sbt
  + modules
     + myModule
         + app
         + build.sbt
         + conf
             + routes

name := "myApp"

version := "1.0-SNAPSHOT"

organization := "com.mydomain"

lazy val myModule = project.in(file("modules/myModule"))

lazy val main = project.in(file(".")).dependsOn(myModule).aggregate(myModule)

play.Project.playScalaSettings

resolvers ++= Seq(
  Resolvers.typesafe,
  Resolvers.sonatype
)

name := "myModule"

libraryDependencies ++= Seq(
  "com.typesafe.play" %% "play" % "2.2.1" % "provided",
  "org.reactivemongo" %% "reactivemongo" % "0.10.0-SNAPSHOT",
  "org.reactivemongo" %% "play2-reactivemongo" % "0.10.0-SNAPSHOT"
)

resolvers ++= Seq(
  Resolvers.typesafe,
  Resolvers.sonatype
)

myApp/projects/Build.scala：

import sbt._

object Resolvers {
  val sonatype = Resolver.sonatypeRepo("snapshots")
  val typesafe = "Typesafe repository" at "http://repo.typesafe.com/typesafe/releases/"
}

myApp/modules/myModule/build.sbt：

myApp
  + app
  + build.sbt
  + conf
  |   + routes
  + project
  |  + build.properties
  |  + Build.scala
  |  + plugin.sbt
  + modules
     + myModule
         + app
         + build.sbt
         + conf
             + routes

name := "myApp"

version := "1.0-SNAPSHOT"

organization := "com.mydomain"

lazy val myModule = project.in(file("modules/myModule"))

lazy val main = project.in(file(".")).dependsOn(myModule).aggregate(myModule)

play.Project.playScalaSettings

resolvers ++= Seq(
  Resolvers.typesafe,
  Resolvers.sonatype
)

name := "myModule"

libraryDependencies ++= Seq(
  "com.typesafe.play" %% "play" % "2.2.1" % "provided",
  "org.reactivemongo" %% "reactivemongo" % "0.10.0-SNAPSHOT",
  "org.reactivemongo" %% "play2-reactivemongo" % "0.10.0-SNAPSHOT"
)

resolvers ++= Seq(
  Resolvers.typesafe,
  Resolvers.sonatype
)

在尝试编译上述项目时，我面临两个问题：

1） 即使只有子项目有依赖项（主项目只是许多子项目的容器），我也必须在主构建文件

myApp/build.sbt

中指定

解析器

；如果我不这样做，项目就不会编译。这不是阻塞问题。。但我想知道为什么

2） 然后，当我尝试编译项目时，总是会出现以下错误：

[error] /home/j3d/Projects/myApp/conf/routes:9: not found: value myModule
[error] -> /myModule myModule.Routes
[error] /home/j3d/Projects/myApp/conf/routes: not found: value myModule
[error] /home/j3d/Projects/myApp/conf/routes:12: not found: value myModule
[error] GET     /assets/*file               controllers.Assets.at(path="/public", file)
[error] /home/j3d/Projects/myApp/conf/routes:9: not found: value handler
[error] -> /myModule myModule.Routes
[error] four errors found
[error] (main/compile:compile) Compilation failed
[error] Total time: 12 s, completed Dec 1, 2013 6:34:55 PM

这里是myApp/conf/routes

GET     /                           controllers.Application.index

-> /myModule myModule.Routes

GET     /assets/*file               controllers.Assets.at(path="/public", file)

。。。最后是myApp/modules/myModule/conf/myModule.routes：

GET     /myModule/greetings         controllers.myModule.Greetings.hello

---

我遗漏了什么吗？

找到了如何让它工作的方法，下面是我的解决方案。首先，我为所有项目定义了默认设置和解析器[myApp/project/Build.scala]：

import sbt._
import Keys._

object ApplicationBuild extends Build {

  val defaultResolvers = Seq(
    Resolver.sonatypeRepo("snapshots"),
    "Typesafe repository" at "http://repo.typesafe.com/typesafe/releases/"
  )

  val defaultSettings = Defaults.defaultSettings ++ Seq(
    scalacOptions += "-language:reflectiveCalls",
    resolvers ++= defaultResolvers
  ) 
}

然后我刚刚将

ApplicationBuild.defaultSettings

导入每个

build.sbt

。这是主要的项目构建文件[myApp/build.sbt]

name := "myApp"

version := "1.0-SNAPSHOT"

lazy val auth = project.in(file("modules/myModule"))

lazy val main = project.in(file(".")).dependsOn(myModule).aggregate(myModule)

ApplicationBuild.defaultSettings

playScalaSettings

。。。这里是子项目构建文件[myApp/modules/myModule/build.sbt]：

name := "myModule"

ApplicationBuild.defaultSettings

playScalaSettings

libraryDependencies ++= Seq(
  "org.reactivemongo" %% "play2-reactivemongo" % "0.10.0-SNAPSHOT",
  "org.reactivemongo" %% "reactivemongo" % "0.10.0-SNAPSHOT"
)

---

它只是起作用，希望能有所帮助；-）

从这个解决方案开始已经有几年了，它仍然引起了一个问题（至少对我来说）。在Play 2.6中，不推荐使用

defaultSettings

，因此使用了

coreDefaultSettings

，但是扩展类/trait

Build

也不推荐使用，我找不到替代的方法。IntelliJ建议我使用

.sbt格式

，但我不确定是什么语法。有什么想法吗？