错误：找不到：值PlayScala-sbt.compiler.EvalException：表达式中键入错误

Question

我的应用程序Scala一直运行到一周前，但是我不知道发生了什么事，因为它不再存在。每次尝试显示以下错误时，我都无法编译应用程序

name := """xxxx"""

version := "1.0-SNAPSHOT"

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

scalaVersion := "2.11.1"

libraryDependencies ++= Seq(
    jdbc,
    anorm,
    cache,
    ws,
    "com.wordnik" %% "swagger-play2" % "1.3.10",
    "org.scalikejdbc" %% "scalikejdbc"                       % 
    "2.1.4",
    "org.scalikejdbc" %% "scalikejdbc-play-plugin"           % "2.3.3",
    "org.scalikejdbc" %% "scalikejdbc-play-fixture-plugin"   % "2.3.3"
)

C:\Users\Pedro\Documents\jd_workspace\rsiWS\build.sbt:5: error: not found: value PlayScala lazy val root = (project in file(".")).enablePlugins(PlayScala) ^ sbt.compiler.EvalException: Type error in expression