CODEWITHSUNDEEP
scalasbtsbt-pluginscala-2.13
Slavik Muz
Slavik Muz

Reputation: 1217

scala 2.13 - error during compiling plugin

I want to create a sbt plugin

this is my project

build.sbt file:

lazy val root = (project in file(".")).
  settings(
    name := "test-plagin",
    version := "0.1.0",
    organization := "com.test",
    scalaVersion := "2.13.0",
    sbtPlugin := true,
  )

main file with task

import sbt.{AutoPlugin, TaskKey}

object HelloPlugin extends AutoPlugin {

  object autoImport {
    val sayHello: TaskKey[Unit] = TaskKey("saying hello")
  }

  import autoImport._
  override def projectSettings = Seq(

    sayHello := {
      println("hello")
    }
  )

}

During compiling I get an error: java.lang.NoClassDefFoundError: scala/collection/immutable/StringOps When I change the version to 2.12.6 - compiling is success. How I can fix error in 2.13?

Upvotes: 0

Views: 493

Answers (1)

Dmytro Mitin
Dmytro Mitin

Reputation: 51703

sbt is written in Scala 2.12

https://github.com/sbt/sbt/blob/develop/project/Dependencies.scala#L9

https://github.com/sbt/sbt/issues/5032

So you should use Scala 2.12 for sbt plugins.

Upvotes: 2

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