pekko-grpc-sbt-plugin 1.2.0 does not support sbt versions older than 1.9.0

[coding4cc]

// in project/plugins.sbt:
addSbtPlugin("org.apache.pekko" % "pekko-grpc-sbt-plugin" % "1.2.0")

compile project occur an error below：

/Library/Java/JavaVirtualMachines/jdk1.8.0_361.jdk/Contents/Home/bin/java -Djline.terminal=jline.UnsupportedTerminal -Dsbt.log.noformat=true -Dfile.encoding=UTF-8 -Xmx2048M -Dgrouping.with.qualified.names.enabled=true -Dseparate.prod.test.sources.enabled=true -Didea.managed=true -Dfile.encoding=UTF-8 -Didea.installation.dir=/Applications/IntelliJ IDEA.app/Contents -jar /Users/coding4cc/Library/Application Support/JetBrains/IntelliJIdea2025.2/plugins/Scala/launcher/sbt-launch.jar [info] welcome to sbt 1.7.2 (Oracle Corporation Java 1.8.0_361) [info] loading global plugins from /Users/coding4cc/.sbt/1.0/plugins [info] loading settings for project sdk-scala-build from plugins.sbt ... [info] loading project definition from /Users/coding4cc/git_repository/kunlun/sdk-scala/project [warn] [warn] Note: Some unresolved dependencies have extra attributes. Check that these dependencies exist with the requested attributes. [warn] org.apache.pekko:pekko-grpc-sbt-plugin:1.2.0 (sbtVersion=1.0, scalaVersion=2.12) [warn] [warn] Note: Unresolved dependencies path: [error] sbt.librarymanagement.ResolveException: Error downloading org.apache.pekko:pekko-grpc-sbt-plugin;sbtVersion=1.0;scalaVersion=2.12:1.2.0 [error] Not found [error] Not found [error] not found: https://repo1.maven.org/maven2/org/apache/pekko/pekko-grpc-sbt-plugin_2.12_1.0/1.2.0/pekko-grpc-sbt-plugin-1.2.0.pom [error] not found: /Users/coding4cc/.ivy2/local/org.apache.pekko/pekko-grpc-sbt-plugin/scala_2.12/sbt_1.0/1.2.0/ivys/ivy.xml [error] not found: https://repo.huaweicloud.com/repository/maven/org/apache/pekko/pekko-grpc-sbt-plugin_2.12_1.0/1.2.0/pekko-grpc-sbt-plugin-1.2.0.pom [error] not found: https://repo.huaweicloud.com/repository/ivy/org.apache.pekko/pekko-grpc-sbt-plugin/scala2.12/sbt1.0/1.2.0/ivys/artifact.xml [error] not found: https://repo.scala-sbt.org/scalasbt/sbt-plugin-releases/org.apache.pekko/pekko-grpc-sbt-plugin/scala_2.12/sbt_1.0/1.2.0/ivys/ivy.xml [error] not found: https://repo.typesafe.com/typesafe/ivy-releases/org.apache.pekko/pekko-grpc-sbt-plugin/scala_2.12/sbt_1.0/1.2.0/ivys/ivy.xml [error] not found: https://repo.scala-sbt.org/scalasbt/sbt-plugin-releases/org.apache.pekko/pekko-grpc-sbt-plugin/scala_2.12/sbt_1.0/1.2.0/ivys/ivy.xml [error] at lmcoursier.CoursierDependencyResolution.unresolvedWarningOrThrow(CoursierDependencyResolution.scala:345) [error] at lmcoursier.CoursierDependencyResolution.$anonfun$update$38(CoursierDependencyResolution.scala:314) [error] at scala.util.Either$LeftProjection.map(Either.scala:573) [error] at lmcoursier.CoursierDependencyResolution.update(CoursierDependencyResolution.scala:314) [error] at sbt.librarymanagement.DependencyResolution.update(DependencyResolution.scala:60) [error] at sbt.internal.LibraryManagement$.resolve$1(LibraryManagement.scala:59) [error] at sbt.internal.LibraryManagement$.$anonfun$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$1(Defaults.scala:3687) [error] at scala.Function1.$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) [error] at sbt.Execute.$anonfun$submit$1(Execute.scala:282) [error] at sbt.ConcurrentRestrictions$$anon$4.$anonfun$submitValid$1(ConcurrentRestrictions.scala:265) [error] at sbt.CompletionService$$anon$2.call(CompletionService.scala:64) [error] at java.util.concurrent.FutureTask.run(FutureTask.java:266) [error] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [error] at java.util.concurrent.FutureTask.run(FutureTask.java:266) [error] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [error] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [error] at java.lang.Thread.run(Thread.java:750) [error] (update) sbt.librarymanagement.ResolveException: Error downloading org.apache.pekko:pekko-grpc-sbt-plugin;sbtVersion=1.0;scalaVersion=2.12:1.2.0 [error] Not found [error] Not found [error] not found: https://repo1.maven.org/maven2/org/apache/pekko/pekko-grpc-sbt-plugin_2.12_1.0/1.2.0/pekko-grpc-sbt-plugin-1.2.0.pom

[raboof]

That's interesting: it's trying https://repo1.maven.org/maven2/org/apache/pekko/pekko-grpc-sbt-plugin_2.12_1.0/1.2.0/pekko-grpc-sbt-plugin-1.2.0.pom while this should be https://repo1.maven.org/maven2/org/apache/pekko/pekko-grpc-sbt-plugin_2.12_1.0/1.2.0/pekko-grpc-sbt-plugin_2.12_1.0-1.2.0.pom .

What version of sbt are you using?

[pjfanning]

• sbt 1.7.2 is in the log text
• could you try sbt 1.11.7?

[coding4cc]

• sbt 1.7.2 is in the log text
• could you try sbt 1.11.7?

@raboof @pjfanning
In our project, the sbt version must be 1.7.2. Can this issue be resolved using version 1.7.2?

[pjfanning]

@coding4cc I would suggest bringing to this to the sbt team.
pekko-grpc-sbt-plugin works fine with newer versions of sbt but something has changed in sbt between sbt 1.7 and sbt 1.11.

[pjfanning]

@coding4cc have you successfully used previous versions of pekko-grpc-sbt-plugin with sbt 1.7?

[raboof]

• sbt 1.7.2 is in the log text
• could you try sbt 1.11.7?

@raboof @pjfanning In our project, the sbt version must be 1.7.2. Can this issue be resolved using version 1.7.2?

TBH I would recommend putting energy in removing whatever limitation is keeping you on 1.7.2, rather than trying to find workarounds for issues with 1.7.2. That said, I suspect you could register a custom resolver to load the plugin with the right artifact pattern (https://www.scala-sbt.org/1.x/docs/Resolvers.html).

[pjfanning]

The change we are seeing is in sbt 1.9.0.
https://github.com/sbt/sbt/releases/tag/v1.9.0

See the section about 'POM consistency of sbt plugin publishing'.

We've never published in the old style and I don't think it is feasible to support people who need that style.

As @raboof suggests, I think it would be more productive to find out why you can't upgrade sbt.

We also have Gradle and Maven support if you are stuck with the old version of sbt.

[coding4cc]

@coding4cc have you successfully used previous versions of pekko-grpc-sbt-plugin with sbt 1.7?

addSbtPlugin("org.apache.pekko" % "pekko-grpc-sbt-plugin" % "1.1.1") works fine with sbt 1.7.2

addSbtPlugin("org.apache.pekko" % "pekko-grpc-sbt-plugin" % "1.2.0") works fine with sbt 1.9.0, but error with sbt1.7.2

Can this issue be resolved using version 1.7.2?

@pjfanning

[He-Pin]

I just bumped the latest version, LesnyRumcajs/grpc_bench#544
which works fine, you can use that repo as a reference too

[pjfanning]

I don't know the internals of sbt and why pekko-grpc 1.1.1 appears to work with sbt 1.7.2 and why 1.2.0 does not.
I am not planning to spend any time working this out either.

@coding4cc there is a proposed workaround - #540 (comment)

[pjfanning]

It does look like sbt published more files for pekko-groc 1.1.1 than it did for 1.2.0

• https://repo1.maven.org/maven2/org/apache/pekko/pekko-grpc-sbt-plugin_2.12_1.0/1.1.1/
• https://repo1.maven.org/maven2/org/apache/pekko/pekko-grpc-sbt-plugin_2.12_1.0/1.2.0/

We used sbt 1.10 in the 1.1.1 release while sbt 1.11 was used in the 1.2.0 release. I suspect that sbt 1.11 dropped support for publishing in the old style.