'sbt clean' trips over scalafix

[raboof]

on the 2.0.0-M1-RC1 tag:

[error] java.lang.IllegalArgumentException: Cannot add dependency 'org.apache.pekko#pekko-http-scalafix-rules_2.13;2.0.0-M1-RC1' to configuration 'scalafix' of module org.apache.pekko#pekko-http-docs_2.13;2.0.0-M1-RC1 because this configuration doesn't exist!
[error] 	at org.apache.ivy.core.module.descriptor.DefaultDependencyDescriptor.addDependencyConfiguration(DefaultDependencyDescriptor.java:567)
[error] 	at org.apache.ivy.plugins.parser.AbstractModuleDescriptorParser$AbstractParser.parseDepsConfs(AbstractModuleDescriptorParser.java:157)
[error] 	at org.apache.ivy.plugins.parser.AbstractModuleDescriptorParser$AbstractParser.parseDepsConfs(AbstractModuleDescriptorParser.java:128)
[error] 	at org.apache.ivy.plugins.parser.AbstractModuleDescriptorParser$AbstractParser.parseDepsConfs(AbstractModuleDescriptorParser.java:118)
[error] 	at org.apache.ivy.plugins.parser.AbstractModuleDescriptorParser$AbstractParser.parseDepsConfs(AbstractModuleDescriptorParser.java:113)
[error] 	at sbt.internal.librarymanagement.CustomXmlParser$CustomParser.parseDepsConfs(CustomXmlParser.scala:36)
[error] 	at sbt.internal.librarymanagement.IvySbt$.convertDependency(Ivy.scala:970)
[error] 	at sbt.internal.librarymanagement.IvySbt$.$anonfun$addDependencies$1(Ivy.scala:905)
[error] 	at scala.collection.TraversableLike.$anonfun$map$1(TraversableLike.scala:286)
[error] 	at scala.collection.Iterator.foreach(Iterator.scala:943)
[error] 	at scala.collection.Iterator.foreach$(Iterator.scala:943)
[error] 	at scala.collection.AbstractIterator.foreach(Iterator.scala:1431)
[error] 	at scala.collection.IterableLike.foreach(IterableLike.scala:74)
[error] 	at scala.collection.IterableLike.foreach$(IterableLike.scala:73)
[error] 	at scala.collection.AbstractIterable.foreach(Iterable.scala:56)
[error] 	at scala.collection.TraversableLike.map(TraversableLike.scala:286)
[error] 	at scala.collection.TraversableLike.map$(TraversableLike.scala:279)
[error] 	at scala.collection.AbstractTraversable.map(Traversable.scala:108)
[error] 	at sbt.internal.librarymanagement.IvySbt$.addDependencies(Ivy.scala:904)
[error] 	at sbt.internal.librarymanagement.IvySbt$Module.configureInline(Ivy.scala:317)
[error] 	at sbt.internal.librarymanagement.IvySbt$Module.x$7$lzycompute(Ivy.scala:281)
[error] 	at sbt.internal.librarymanagement.IvySbt$Module.x$7(Ivy.scala:278)
[error] 	at sbt.internal.librarymanagement.IvySbt$Module.moduleDescriptor0$lzycompute(Ivy.scala:278)
[error] 	at sbt.internal.librarymanagement.IvySbt$Module.moduleDescriptor0(Ivy.scala:278)
[error] 	at sbt.internal.librarymanagement.IvySbt$Module.$anonfun$withModule$1(Ivy.scala:267)
[error] 	at sbt.internal.librarymanagement.IvySbt.$anonfun$withIvy$1(Ivy.scala:212)
[error] 	at sbt.internal.librarymanagement.IvySbt.sbt$internal$librarymanagement$IvySbt$$action$1(Ivy.scala:72)
[error] 	at sbt.internal.librarymanagement.IvySbt$$anon$1.call(Ivy.scala:82)
[error] 	at xsbt.boot.Locks$GlobalLock.withChannel$1(Locks.scala:100)
[error] 	at xsbt.boot.Locks$GlobalLock.withChannelRetries$1(Locks.scala:80)
[error] 	at xsbt.boot.Locks$GlobalLock.withFileLock$$anonfun$1(Locks.scala:103)
[error] 	at xsbt.boot.Using$.withResource(Using.scala:14)
[error] 	at xsbt.boot.Using$.apply(Using.scala:11)
[error] 	at xsbt.boot.Locks$GlobalLock.withFileLock(Locks.scala:103)
[error] 	at xsbt.boot.Locks$GlobalLock.ignoringDeadlockAvoided(Locks.scala:64)
[error] 	at xsbt.boot.Locks$GlobalLock.withLock(Locks.scala:55)
[error] 	at xsbt.boot.Locks$.apply0(Locks.scala:45)
[error] 	at xsbt.boot.Locks$.apply(Locks.scala:36)
[error] 	at sbt.internal.librarymanagement.IvySbt.withDefaultLogger(Ivy.scala:82)
[error] 	at sbt.internal.librarymanagement.IvySbt.withIvy(Ivy.scala:206)
[error] 	at sbt.internal.librarymanagement.IvySbt.withIvy(Ivy.scala:203)
[error] 	at sbt.internal.librarymanagement.IvySbt$Module.withModule(Ivy.scala:266)
[error] 	at sbt.internal.librarymanagement.IvyActions$.cleanCachedResolutionCache(IvyActions.scala:56)
[error] 	at sbt.Defaults$.$anonfun$compileBase$9(Defaults.scala:728)
[error] 	at sbt.Defaults$.$anonfun$compileBase$9$adapted(Defaults.scala:728)
[error] 	at scala.Function1.$anonfun$compose$1(Function1.scala:49)
[error] 	at sbt.internal.util.$tilde$greater.$anonfun$$u2219$1(TypeFunctions.scala:63)
[error] 	at sbt.std.Transform$$anon$4.work(Transform.scala:69)
[error] 	at sbt.Execute.$anonfun$submit$2(Execute.scala:283)
[error] 	at sbt.internal.util.ErrorHandling$.wideConvert(ErrorHandling.scala:24)
[error] 	at sbt.Execute.work(Execute.scala:292)
[error] 	at sbt.Execute.$anonfun$submit$1(Execute.scala:283)
[error] 	at sbt.ConcurrentRestrictions$$anon$4.$anonfun$submitValid$1(ConcurrentRestrictions.scala:265)
[error] 	at sbt.CompletionService$$anon$2.call(CompletionService.scala:65)
[error] 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
[error] 	at java.util.concurrent.Executors$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] (docs / cleanIvy) java.lang.IllegalArgumentException: Cannot add dependency 'org.apache.pekko#pekko-http-scalafix-rules_2.13;2.0.0-M1-RC1' to configuration 'scalafix' of module org.apache.pekko#pekko-http-docs_2.13;2.0.0-M1-RC1 because this configuration doesn't exist!
[error] Total time: 0 s, completed Jan 14, 2026 4:39:31 PM