sbt子项目中的play框架-未定义应用程序加载器

play.http.secret.key = "your-secret-key"

name := "my-play-project"

version := "1.0"

lazy val root = (project in file("."))
  .enablePlugins(PlayScala)
  .settings(
    name := "my-play-project",
    version := "1.0",
    scalaVersion := "2.13.8",
    libraryDependencies ++= Seq(
      guice,
      "org.scalatestplus.play" %% "scalatestplus-play" % "5.1.0" % Test
    )
  )

lazy val root = (project in file("."))
  .enablePlugins(PlayScala)

sbt clean
sbt compile
sbt run

name := "my-play-project"

version := "1.0"

lazy val root = (project in file("."))
  .enablePlugins(PlayScala)
  .settings(
    name := "my-play-project",
    version := "1.0",
    scalaVersion := "2.13.8",
    libraryDependencies ++= Seq(
      guice,
      "org.scalatestplus.play" %% "scalatestplus-play" % "5.1.0" % Test
    )
  )

my-play-project/
├── build.sbt
├── conf/
│   └── application.conf
├── project/
│   └── build.properties
└── app/
    └── controllers/
        └── HomeController.scala