failed: nightly build failed because of binary incompatible sbt check

[octonato]

The nightly build is failing since we merged #10956

I didn't look further, but I suspect this is due to the upgrade to sbt 1.5.5 and the fact that the nightly build uses a akka-http snapshot.

If I understand correct, what was previously an eviction warning is not by default an 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-java8-compat_2.13:1.0.0 (early-semver) is selected over 0.9.1
[error] 	    +- com.typesafe.play:play-streams_2.13:2.8.1+1278-9f273803-akka-2.6.16+64-bb839128-SNAPSHOT-akka-http-10.1.14+6-971cf72c-SNAPSHOT (depends on 1.0.0)
[error] 	    +- com.typesafe.akka:akka-actor_2.13:2.6.16+64-bb839128-SNAPSHOT (depends on 1.0.0)
[error] 	    +- org.scala-lang.modules:scala-java8-compat_2.13:0.9.1 (depends on 0.9.1)
[error] 
[error] 
[error] this can be overridden using libraryDependencySchemes or evictionErrorLevel
[error] 	at scala.sys.package$.error(package.scala:30)
[error] 	at sbt.internal.LibraryManagement$.resolve$1(LibraryManagement.scala:89)
[error] 	at sbt.internal.LibraryManagement$.$anonfun$cachedUpdate$12(LibraryManagement.scala:133)
[error] 	at sbt.util.Tracked$.$anonfun$lastOutput$1(Tracked.scala:73)
[error] 	at sbt.internal.LibraryManagement$.$anonfun$cachedUpdate$20(LibraryManagement.scala:146)
[error] 	at scala.util.control.Exception$Catch.apply(Exception.scala:228)
[error] 	at sbt.internal.LibraryManagement$.$anonfun$cachedUpdate$11(LibraryManagement.scala:146)
[error] 	at sbt.internal.LibraryManagement$.$anonfun$cachedUpdate$11$adapted(LibraryManagement.scala:127)
[error] 	at sbt.util.Tracked$.$anonfun$inputChangedW$1(Tracked.scala:219)
[error] 	at sbt.internal.LibraryManagement$.cachedUpdate(LibraryManagement.scala:160)
[error] 	at sbt.Classpaths$.$anonfun$updateTask0$1(Defaults.scala:3678)
[error] 	at scala.Function1.$anonfun$compose$1(Function1.scala:49)
[error] 	at sbt.internal.util.$tilde$greater.$anonfun$$u2219$1(TypeFunctions.scala:62)
[error] 	at sbt.std.Transform$$anon$4.work(Transform.scala:68)
[error] 	at sbt.Execute.$anonfun$submit$2(Execute.scala:282)
[error] 	at sbt.internal.util.ErrorHandling$.wideConvert(ErrorHandling.scala:23)
[error] 	at sbt.Execute.work(Execute.scala:291)

[octonato]

Yep, that's sbt 1.5.5
https://eed3si9n.com/sbt-1.5.0

[mkurz]

The problem is not really sbt 1.5.x. The master branch is using sbt 1.5.x already since probably half a year or so now and cron jobs were working fine.

The "problem" is that akka 2.6.15 switched to scala-java8-compat version 1.0.0. And because the cron job is using the latest akka snapshot, sbt 1.5 is complaining now that the version Play is using (0.9.1) and the version akka 2.15+ is using are incompatible.

Anyway, that will be fixed by #10969, were I upgrade a couple of dependencies all at once which should silent any sbt complains.

[ennru]

scala-java8-compat 1.0.0 is considered bin-compatible with 0.9.1, even though it reads differently.

Akka added this explicit resolution akka/akka#30375 for it.

[mkurz]

Finally, more than half a year of broken cron build 🥳