ScalaJS插件0.6.23：“值%不是字符串的成员”

Question

从ScalaJS 0.6.23迁移到0.6.21之后

(addSbtPlugin("org.scala-js" % "sbt-scalajs" % "0.6.23"))

我的sbt-build抛出以下异常：

...
[error] /Users/mpa/dev/Github/pme123/scala-adapters/project/Settings.scala:88:20: value %%% is not a member of String
[error]     "org.scala-js" %%% "scalajs-dom" % "0.9.6"
[error]                    ^
[error] /Users/mpa/dev/Github/pme123/scala-adapters/project/Settings.scala:90:27: value %%% is not a member of String
[error]     , "com.typesafe.play" %%% "play-json" % "2.6.1"
...

这是来自Settings.scala的值

  lazy val clientDependencies: Seq[Def.Setting[_]] = Def.settings(libraryDependencies ++= Seq(
    "org.scala-js" %%% "scalajs-dom" % "0.9.6"
    , "org.scala-lang.modules" %% "scala-xml" % "1.0.6"
    , ...
  ))

这就是它在build.sbt中的用法

lazy val client = (project in file("client"))
  .settings(sharedSettings(Some("client")))
  .settings(clientSettings)
  .settings(clientDependencies)
  .settings(jsSettings)
  .enablePlugins(ScalaJSWeb)
  .dependsOn(sharedJs)

这是一个项目：https://github.com/pme123/scala-adapters

Answer 1

Scala.js 0.6.23的发行说明说

%%%在sbt构建的.scala文件中的用法(在project/下)需要一个新的导入： 导入org.portablescala.sbtplatformdeps.PlatformDepsPlugin.autoImport._ 对于.sbt文件，此导入将自动添加，因此不会发生任何更改。

所以你需要添加

import org.portablescala.sbtplatformdeps.PlatformDepsPlugin.autoImport._

在Settings.scala文件中。