NoSuchMethodError for scala 2.12.13

[aaabramov]

Error: java.lang.NoSuchMethodError: scala.tools.nsc.Global.reporter()Lscala/tools/nsc/reporters/Reporter

Reference and all details: sbt/sbt#6251

Error: https://github.com/bitcoin-s/bitcoin-s/pull/2509/checks (credits to sbt/sbt#6251 (comment) / @Christewart)

[eed3si9n]

Unlike scala-library, there's no binary compatibility guarantees between two patch releases of scala-compiler. Thus well-designed compiler plugins are released with

    crossVersion := CrossVersion.full,
    crossTarget := target.value / s"scala-${scalaVersion.value}",

However, sbt-scoverage seems to be using %%, which is suspicious:

sbt-scoverage/src/main/scala/scoverage/ScoverageSbtPlugin.scala

Lines 55 to 65 in ddec737

	libraryDependencies ++= {
	if (coverageEnabled.value)
	Seq(
	// We only add for "compile"" because of macros. This setting could be optimed to just "test" if the handling
	// of macro coverage was improved.
	OrgScoverage %% (scalacRuntime(libraryDependencies.value)) % coverageScalacPluginVersion.value,
	// We don't want to instrument the test code itself, nor add to a pom when published with coverage enabled.
	OrgScoverage %% ScalacPluginArtifact % coverageScalacPluginVersion.value % ScoveragePluginConfig.name
	)
	else
	Nil

In the case of Scala 2.12.13, binary compatibility was intentionally broken in scala/scala#9300.

[solarmosaic-kflorence]

Any idea when this will be fixed? Considering disabling scoverage as we need to upgrade to 2.12.13 for other reasons.