Version conflicts for scala-parser-combinators

[alexandru]

Hello,

I'm getting this issue in sbt:

[error] java.lang.RuntimeException: found version conflict(s) in library dependencies; some are suspected to be binary incompatible:
[error]
[error] 	* org.scala-lang.modules:scala-parser-combinators_2.12:2.0.0 (early-semver) is selected over {1.0.5, 1.1.2, 1.1.2, 1.1.1
[error] 	    +- com.github.sbt:sbt-native-packager:1.9.4 (sbtVersion=1.0, scalaVersion=2.12) (depends on 2.0.0)
[error] 	    +- org.scalaxb:scalaxb_2.12:1.8.2                     (depends on 1.1.1)
[error] 	    +- org.scala-sbt:zinc-compile-core_2.12:1.5.7         (depends on 1.1.2)
[error] 	    +- com.typesafe:ssl-config-core_2.12:0.4.0            (depends on 1.1.2)
[error] 	    +- com.jsuereth:pgp-library_2.12:2.0.1                (depends on 1.0.5)
[error]

Here's my entire plugins.sbt file:

addSbtPlugin("com.dwijnand"              % "sbt-dynver"          % "4.1.1")
addSbtPlugin("com.eed3si9n"              % "sbt-assembly"        % "1.1.0")
addSbtPlugin("com.eed3si9n"              % "sbt-buildinfo"       % "0.10.0")
addSbtPlugin("com.lightbend.sbt"         % "sbt-javaagent"       % "0.1.6")
addSbtPlugin("com.timushev.sbt"          % "sbt-updates"         % "0.6.0")
addSbtPlugin("com.typesafe.sbt"          % "sbt-multi-jvm"       % "0.4.0")
addSbtPlugin("com.github.sbt"            % "sbt-native-packager" % "1.9.4")
addSbtPlugin("com.typesafe.sbt"          % "sbt-twirl"           % "1.5.1")
addSbtPlugin("io.get-coursier"           % "sbt-coursier"        % "1.0.3")
addSbtPlugin("io.github.davidgregory084" % "sbt-tpolecat"        % "0.1.20")
addSbtPlugin("io.kamon"                  % "sbt-kanela-runner"   % "2.0.10")
addSbtPlugin("io.spray"                  % "sbt-revolver"        % "0.9.1")
addSbtPlugin("org.scalameta"             % "sbt-scalafmt"        % "2.4.3")
addSbtPlugin("org.scalaxb"               % "sbt-scalaxb"         % "1.8.2")
addSbtPlugin("org.scoverage"             % "sbt-scoverage"       % "1.9.0")
addSbtPlugin("org.wartremover"           % "sbt-wartremover"     % "2.4.16")

// Fixes IntelliJ bug — https://youtrack.jetbrains.com/issue/SCL-16345
// https://github.com/tpunder/fm-sbt-s3-resolver
addSbtPlugin("com.frugalmechanic" % "fm-sbt-s3-resolver" % "0.19.0")

addDependencyTreePlugin

With such dependencies, I think shading is a good solution.

[muuki88]

Thanks for the comprehensive report 🤗

Indeed shading should be the way to go. I'm really surprised how many plugins rely on this lib 😅

You wouldn't have time by chance to provide a pull request 😁😘

[mr-git]

got similar issue:

[error] 	* org.scala-lang.modules:scala-parser-combinators_2.12:2.0.0 (early-semver) is selected over 1.0.5
[error] 	    +- com.github.sbt:sbt-native-packager:1.9.4 (scalaVersion=2.12, sbtVersion=1.0) (depends on 2.0.0)
[error] 	    +- org.foundweekends:knockoff_2.12:0.8.6              (depends on 1.0.5)

in my case caused by sbt-site, sbt/sbt-site#172

[oleastre]

Problem is solved in master it seems since #1455
But there have been no release since then.

[muuki88]

Sorry, I missed out on releasing this. v1.9.5 is on its way

[muuki88]

After re-reading the history of this, I'm not sure if shading is necessary.

@mkurz wrote a very comprehensive comment

Do NOT upgrade these dependencies to 2.x or newer! sbt-native-packager is a sbt-plugin
and gets published with Scala 2.12, therefore we need to stay at the same major version
like the 2.12.x Scala compiler, otherwise we run into conflicts when using sbt 1.5+
See scala/scala#9743

which I interpret as "there's no way until, let's say sbt 2.x along with scala3, this dependency can ever be upgraded to the 2.x line". If this is correct, then shading would add no benefit, right?

[oleastre]

Shading could help by avoiding the resolution conflict, but is there a benefit updating that dependency ?

[mkurz]

@muuki88 This issue can be closed, since it is fixed with vv1.9.5+.