Scala的Play框架：编译错误[类型应用程序不是程序包控制器的成员

C:Playexpch6_implicits>activator run
[info] Loading project definition from C:Playexpch6_implicitsproject
[info] Set current project to ch6_implicits (in build file:/C:/Play/exp/ch6_implicits/)

--- (Running the application,auto-reloading is enabled) ---

[info] p.a.l.c.ActorSystemProvider - Starting application default Akka system: application
[info] p.c.s.NettyServer$ - Listening for HTTP on /0:0:0:0:0:0:0:0:9000

(Server started,use Ctrl+D to stop and go back to the console...)

[info] Compiling 13 Scala sources and 1 Java source to C:Playexpch6_implicitstargetscala-2.11classes...
[error] C:Playexpch6_implicitsconfroutes:6: type Application is not a member of package controllers
[error] GET             /                               controllers.Application.index
[error] C:Playexpch6_implicitsconfroutes:7: type Shop is not a member of package controllers
[error] GET             /catalog                controllers.Shop.catalog
[error] C:Playexpch6_implicitsconfroutes:6: type Application is not a member of package controllers
[error] GET             /                               controllers.Application.index
[error] C:Playexpch6_implicitsconfroutes:7: type Shop is not a member of package controllers
[error] GET             /catalog                controllers.Shop.catalog
[error] C:Playexpch6_implicitsconfroutes:6: type Application is not a member of package controllers
[error] GET             /                               controllers.Application.index
[error] C:Playexpch6_implicitsconfroutes:7: type Shop is not a member of package controllers
[error] GET             /catalog                controllers.Shop.catalog
[error] 6 errors found
[error] (compile:compileIncremental) Compilation failed
[error] application -

! @6mafk6inc - Internal server error,for (GET) [/products/new] ->

play.sbt.PlayExceptions$CompilationException: Compilation error[type Application is not a member of package controllers]
        at play.sbt.PlayExceptions$CompilationException$.apply(PlayExceptions.scala:27) ~[na:na]
        at play.sbt.PlayExceptions$CompilationException$.apply(PlayExceptions.scala:27) ~[na:na]
        at scala.Option.map(Option.scala:145) ~[scala-library-2.11.6.jar:na]
        at play.sbt.run.PlayReload$$anonfun$taskFailureHandler$1.apply(PlayReload.scala:49) ~[na:na]
        at play.sbt.run.PlayReload$$anonfun$taskFailureHandler$1.apply(PlayReload.scala:44) ~[na:na]
        at scala.Option.map(Option.scala:145) ~[scala-library-2.11.6.jar:na]
        at play.sbt.run.PlayReload$.taskFailureHandler(PlayReload.scala:44) ~[na:na]
        at play.sbt.run.PlayReload$.compileFailure(PlayReload.scala:40) ~[na:na]
        at play.sbt.run.PlayReload$$anonfun$compile$1.apply(PlayReload.scala:17) ~[na:na]
        at play.sbt.run.PlayReload$$anonfun$compile$1.apply(PlayReload.scala:17) ~[na:na]

Application.scala是：

package controllers

import play.api._
import play.api.mvc._

// We extend the 'WithCart' trait,so we have an implicit conversion from RequestHeader to Cart
object Application extends Controller with WithCart {

  def index = Action { implicit request =>
    // The index template takes an implicit Cart,which is not available.
    // However,the WithCart trait has an implicit conversion from
    // RequestHeader to Cart,and we do have an implicit RequestHeader
    // here,because `request` is a Request,which extends RequestHeader.
    Ok(views.html.index())
  }

  def contact = Action { implicit request =>
    Ok(views.html.contact())
  }

}

Shop.scala是

package controllers

import play.api._
import play.api.mvc._
import models._

object Shop extends Controller with WithCart {

  def catalog() = Action { implicit request =>
    val products = ProductDAO.list
    Ok(views.html.products.catalog(products))
  }

}

路由文件是：

# Routes
# This file defines all application routes (Higher priority routes first)
# ~~~~

# Home page
GET     /               controllers.Application.index
GET     /catalog        controllers.Shop.catalog
GET     /contact        controllers.Application.contact

# Map static resources from the /public folder to the /assets URL path
GET     /assets/*file               controllers.Assets.at(path="/public",file)

Play Framework是2.4.0，大概说：

[ch6_implicits] $ about
[info] This is sbt 0.13.8
[info] The current project is {file:/C:/Play/exp/ch6_implicits/}root 1.0-SNAPSHOT
[info] The current project is built against Scala 2.11.6
[info] Available Plugins: sbt.plugins.IvyPlugin,sbt.plugins.JvmPlugin,sbt.plugins.CorePlugin,sbt.plugins.JUnitXmlReportPlugin,play.sbt.Play,play.sbt.PlayAkkaHttpServer,play.sbt.PlayJava,play.sb
t.PlayLayoutPlugin,play.sbt.PlayNettyServer,play.sbt.PlayScala,play.sbt.routes.RoutesCompiler,play.twirl.sbt.SbtTwirl,com.typesafe.sbt.SbtNativePackager,com.typesafe.sbt.packager.archetypes.Akka
AppPackaging,com.typesafe.sbt.packager.archetypes.JavaAppPackaging,com.typesafe.sbt.packager.archetypes.JavaServerAppPackaging,com.typesafe.sbt.packager.archetypes.jar.ClasspathJarPlugin,com.types
afe.sbt.packager.archetypes.jar.LauncherJarPlugin,com.typesafe.sbt.packager.debian.DebianDeployPlugin,com.typesafe.sbt.packager.debian.DebianPlugin,com.typesafe.sbt.packager.debian.JDebPackaging,c
om.typesafe.sbt.packager.docker.DockerPlugin,com.typesafe.sbt.packager.jdkpackager.JDKPackagerDeployPlugin,com.typesafe.sbt.packager.jdkpackager.JDKPackagerPlugin,com.typesafe.sbt.packager.linux.Li
nuxPlugin,com.typesafe.sbt.packager.rpm.RpmDeployPlugin,com.typesafe.sbt.packager.rpm.RpmPlugin,com.typesafe.sbt.packager.universal.UniversalDeployPlugin,com.typesafe.sbt.packager.universal.Univer
salPlugin,com.typesafe.sbt.packager.windows.WindowsDeployPlugin,com.typesafe.sbt.packager.windows.WindowsPlugin,com.typesafe.sbt.web.SbtWeb,com.typesafe.sbt.jse.SbtJsEngine,com.typesafe.sbt.jse.S
btJsTask,com.typesafe.sbt.coffeescript.SbtCoffeeScript,com.typesafe.sbt.less.SbtLess,com.typesafe.sbt.jshint.SbtJSHint,com.typesafe.sbt.rjs.SbtRjs,com.typesafe.sbt.digest.SbtDigest,com.typesafe.
sbt.mocha.SbtMocha,com.typesafe.sbteclipse.plugin.EclipsePlugin
[info] sbt,sbt plugins,and build definitions are using Scala 2.10.4
[ch6_implicits] $

而Java版本是：

C:Playexpch6_implicits>java -version
java version "1.8.0_45"
Java(TM) SE Runtime Environment (build 1.8.0_45-b15)
Java HotSpot(TM) 64-Bit Server VM (build 25.45-b02,mixed mode)

C:Playexpch6_implicits>javac -version
javac 1.8.0_45

任何想法有什么问题和如何解决这个问题？

到目前为止，其他示例已经在我的环境中编译并运行没有错误。

感谢您的支持！