解决sbt中的jar加载冲突 [英] troubleshooting jar loading conflicts in sbt
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问题描述
在将两个特定的sbt插件一起添加到其构建定义中的项目时，在sbt启动时出现以下错误.这些sbt插件之一是 scalikejdbc ，另一个是
I get the following error on sbt startup, when two specific sbt plugins are added together to a project in its build definition. One of these sbt plugins is scalikejdbc and the other is my own, and clearly their mutual inclusion in a project's build definition results in this error upon sbt startup:
scala.reflect.internal.Types$TypeError: package macros contains object
and package with same name: blackbox
很显然，每个插件似乎都带来了不同版本的 scala.reflect.macros 从而导致此错误.我可以在sbt插件的罐子里戳戳，实际上其中一个似乎可以带scala/reflect/macros/blackbox.class ―
Clearly, it looks as if each plugin brings along a different version of scala.reflect.macros thus causing this error. I can poke inside the jars of the sbt plugins, and indeed one of them may seem to bring along a scala/reflect/macros/blackbox.class ―
$ jar -tvf scalikejdbc-core_2.10/jars/scalikejdbc-core_2.10-2.4.2.jar | grep black
0 Sat Jun 11 15:51:10 IDT 2016 scala/reflect/macros/blackbox/
405 Sat Jun 11 15:51:04 IDT 2016 scala/reflect/macros/blackbox/package$.class
419 Sat Jun 11 15:51:04 IDT 2016 scala/reflect/macros/blackbox/package.class
-但是，很难确定在此早期启动阶段sbt加载了什么，以便确定此处涉及该程序包的哪个版本以及哪些依赖项将它们带到一起.
― however it's hard to positively conclude what gets loaded by sbt during this early startup phase, in order to figure which versions of this package are involved here and which dependencies bring them along.
感谢您对如何进行此调查的建议！
Thanks for your suggestions about how to proceed with this investigation!
出于完整性考虑，我将sbt给出的全部错误都包括在下面，但我真诚地怀疑它会添加任何信息，因此您可能会忽略它.
And just for completeness sake ― I include below the full error given by sbt below only ― but I sincerely doubt it adds any information so you can likely ignore it.
scala.reflect.internal.Types$TypeError: package macros contains object and package with same name: blackbox
one of them needs to be removed from classpath
at scala.tools.nsc.symtab.SymbolLoaders.enterPackage(SymbolLoaders.scala:66)
at scala.tools.nsc.symtab.SymbolLoaders$PackageLoader$$anonfun$doComplete$4.apply(SymbolLoaders.scala:244)
at scala.tools.nsc.symtab.SymbolLoaders$PackageLoader$$anonfun$doComplete$4.apply(SymbolLoaders.scala:243)
at scala.collection.Iterator$class.foreach(Iterator.scala:727)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1157)
at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
at scala.tools.nsc.symtab.SymbolLoaders$PackageLoader.doComplete(SymbolLoaders.scala:243)
at scala.tools.nsc.symtab.SymbolLoaders$SymbolLoader.complete(SymbolLoaders.scala:194)
at scala.reflect.internal.Symbols$Symbol.info(Symbols.scala:1231)
at scala.reflect.internal.pickling.UnPickler$Scan.scala$reflect$internal$pickling$UnPickler$Scan$$fromName$1(UnPickler.scala:207)
at scala.reflect.internal.pickling.UnPickler$Scan.readExtSymbol$1(UnPickler.scala:226)
at scala.reflect.internal.pickling.UnPickler$Scan.readSymbol(UnPickler.scala:250)
at scala.reflect.internal.pickling.UnPickler$Scan.readSymbolRef(UnPickler.scala:783)
at scala.reflect.internal.pickling.UnPickler$Scan.readType(UnPickler.scala:335)
at scala.reflect.internal.pickling.UnPickler$Scan$$anonfun$readTypeRef$1.apply(UnPickler.scala:792)
at scala.reflect.internal.pickling.UnPickler$Scan$$anonfun$readTypeRef$1.apply(UnPickler.scala:792)
at scala.reflect.internal.pickling.UnPickler$Scan.at(UnPickler.scala:171)
at scala.reflect.internal.pickling.UnPickler$Scan.readTypeRef(UnPickler.scala:792)
at scala.reflect.internal.pickling.UnPickler$Scan.readType(UnPickler.scala:345)
at scala.reflect.internal.pickling.UnPickler$Scan$$anonfun$readTypeRef$1.apply(UnPickler.scala:792)
at scala.reflect.internal.pickling.UnPickler$Scan$$anonfun$readTypeRef$1.apply(UnPickler.scala:792)
at scala.reflect.internal.pickling.UnPickler$Scan.at(UnPickler.scala:171)
at scala.reflect.internal.pickling.UnPickler$Scan.readTypeRef(UnPickler.scala:792)
at scala.reflect.internal.pickling.UnPickler$Scan.readAnnotationInfo(UnPickler.scala:466)
at scala.reflect.internal.pickling.UnPickler$Scan.readSymbolAnnotation(UnPickler.scala:491)
at scala.reflect.internal.pickling.UnPickler$Scan.run(UnPickler.scala:88)
at scala.reflect.internal.pickling.UnPickler.unpickle(UnPickler.scala:37)
at scala.tools.nsc.symtab.classfile.ClassfileParser.scala$tools$nsc$symtab$classfile$ClassfileParser$$parseAttribute$1(ClassfileParser.scala:908)
at scala.tools.nsc.symtab.classfile.ClassfileParser.parseAttributes(ClassfileParser.scala:1084)
at scala.tools.nsc.symtab.classfile.ClassfileParser.parseClass(ClassfileParser.scala:580)
at scala.tools.nsc.symtab.classfile.ClassfileParser.parse(ClassfileParser.scala:88)
at scala.tools.nsc.symtab.SymbolLoaders$ClassfileLoader.doComplete(SymbolLoaders.scala:261)
at scala.tools.nsc.symtab.SymbolLoaders$SymbolLoader.complete(SymbolLoaders.scala:194)
at scala.reflect.internal.Symbols$Symbol.info(Symbols.scala:1231)
at scala.reflect.internal.SymbolTable.openPackageModule(SymbolTable.scala:244)
at scala.reflect.internal.SymbolTable.openPackageModule(SymbolTable.scala:300)
at scala.tools.nsc.symtab.SymbolLoaders$PackageLoader.doComplete(SymbolLoaders.scala:247)
at scala.tools.nsc.symtab.SymbolLoaders$SymbolLoader.complete(SymbolLoaders.scala:194)
at scala.tools.nsc.symtab.SymbolLoaders$SymbolLoader.load(SymbolLoaders.scala:210)
at scala.reflect.internal.Symbols$Symbol.typeParams(Symbols.scala:1489)
at scala.reflect.internal.Types$class.scala$reflect$internal$Types$$isRawIfWithoutArgs(Types.scala:4394)
at scala.reflect.internal.Types$$anon$11.apply(Types.scala:4416)
at scala.reflect.internal.Symbols$TermSymbol.scala$reflect$internal$Symbols$TermSymbol$$cook$1(Symbols.scala:2581)
at scala.reflect.internal.Symbols$TermSymbol.doCookJavaRawInfo(Symbols.scala:2589)
at scala.reflect.internal.Symbols$Symbol.cookJavaRawInfo(Symbols.scala:1442)
at scala.tools.nsc.typechecker.Infer$Inferencer.checkAccessible(Infer.scala:384)
at scala.tools.nsc.typechecker.Typers$Typer.scala$tools$nsc$typechecker$Typers$Typer$$makeAccessible(Typers.scala:605)
at scala.tools.nsc.typechecker.Typers$Typer.typedIdent$2(Typers.scala:5201)
at scala.tools.nsc.typechecker.Typers$Typer.typedIdentOrWildcard$1(Typers.scala:5218)
at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:5561)
at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:5642)
at scala.tools.nsc.typechecker.Typers$Typer.typedQualifier(Typers.scala:5727)
at scala.tools.nsc.typechecker.Typers$Typer.typedQualifier(Typers.scala:5735)
at scala.tools.nsc.typechecker.Namers$Namer.importSig(Namers.scala:1357)
at scala.tools.nsc.typechecker.Namers$Namer.getSig$1(Namers.scala:1460)
at scala.tools.nsc.typechecker.Namers$Namer.typeSig(Namers.scala:1463)
at scala.tools.nsc.typechecker.Namers$Namer$$anonfun$monoTypeCompleter$1$$anonfun$apply$1.apply$mcV$sp(Namers.scala:728)
at scala.tools.nsc.typechecker.Namers$Namer$$anonfun$monoTypeCompleter$1$$anonfun$apply$1.apply(Namers.scala:727)
at scala.tools.nsc.typechecker.Namers$Namer$$anonfun$monoTypeCompleter$1$$anonfun$apply$1.apply(Namers.scala:727)
at scala.tools.nsc.typechecker.Namers$Namer.scala$tools$nsc$typechecker$Namers$Namer$$logAndValidate(Namers.scala:1496)
at scala.tools.nsc.typechecker.Namers$Namer$$anonfun$monoTypeCompleter$1.apply(Namers.scala:727)
at scala.tools.nsc.typechecker.Namers$Namer$$anonfun$monoTypeCompleter$1.apply(Namers.scala:726)
at scala.tools.nsc.typechecker.Namers$$anon$1.completeImpl(Namers.scala:1611)
at scala.tools.nsc.typechecker.Namers$LockingTypeCompleter$class.complete(Namers.scala:1619)
at scala.tools.nsc.typechecker.Namers$$anon$1.complete(Namers.scala:1609)
at scala.reflect.internal.Symbols$Symbol.info(Symbols.scala:1231)
at scala.reflect.internal.Symbols$Symbol.initialize(Symbols.scala:1374)
at scala.tools.nsc.typechecker.Typers$Typer.scala$tools$nsc$typechecker$Typers$Typer$$typedStat$1(Typers.scala:2912)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$61.apply(Typers.scala:3032)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$61.apply(Typers.scala:3032)
at scala.collection.immutable.List.loop$1(List.scala:170)
at scala.collection.immutable.List.mapConserve(List.scala:186)
at scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:3032)
at scala.tools.nsc.typechecker.Typers$Typer.typedPackageDef$1(Typers.scala:5301)
at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:5587)
at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:5642)
at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:5704)
at scala.tools.nsc.typechecker.Analyzer$typerFactory$$anon$3.apply(Analyzer.scala:99)
at scala.tools.nsc.Global$GlobalPhase.applyPhase(Global.scala:464)
at scala.tools.nsc.typechecker.Analyzer$typerFactory$$anon$3$$anonfun$run$1.apply(Analyzer.scala:91)
at scala.tools.nsc.typechecker.Analyzer$typerFactory$$anon$3$$anonfun$run$1.apply(Analyzer.scala:91)
at scala.collection.Iterator$class.foreach(Iterator.scala:727)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1157)
at scala.tools.nsc.typechecker.Analyzer$typerFactory$$anon$3.run(Analyzer.scala:91)
at sbt.compiler.Eval$$anonfun$compile$1$1.apply$mcV$sp(Eval.scala:177)
at sbt.compiler.Eval$$anonfun$compile$1$1.apply(Eval.scala:177)
at sbt.compiler.Eval$$anonfun$compile$1$1.apply(Eval.scala:177)
at scala.reflect.internal.SymbolTable.atPhase(SymbolTable.scala:207)
at sbt.compiler.Eval.compile$1(Eval.scala:177)
at sbt.compiler.Eval.compileAndLoad(Eval.scala:182)
at sbt.compiler.Eval.evalCommon(Eval.scala:152)
at sbt.compiler.Eval.evalDefinitions(Eval.scala:122)
at sbt.EvaluateConfigurations$.evaluateDefinitions(EvaluateConfigurations.scala:271)
at sbt.EvaluateConfigurations$.evaluateSbtFile(EvaluateConfigurations.scala:109)
at sbt.Load$.sbt$Load$$loadSettingsFile$1(Load.scala:725)
at sbt.Load$$anonfun$sbt$Load$$memoLoadSettingsFile$1$1.apply(Load.scala:731)
at sbt.Load$$anonfun$sbt$Load$$memoLoadSettingsFile$1$1.apply(Load.scala:730)
at scala.collection.MapLike$class.getOrElse(MapLike.scala:128)
at scala.collection.AbstractMap.getOrElse(Map.scala:58)
at sbt.Load$.sbt$Load$$memoLoadSettingsFile$1(Load.scala:730)
at sbt.Load$$anonfun$loadFiles$1$2.apply(Load.scala:738)
at sbt.Load$$anonfun$loadFiles$1$2.apply(Load.scala:738)
at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:47)
at scala.collection.TraversableLike$class.map(TraversableLike.scala:244)
at scala.collection.AbstractTraversable.map(Traversable.scala:105)
at sbt.Load$.loadFiles$1(Load.scala:738)
at sbt.Load$.discoverProjects(Load.scala:749)
at sbt.Load$.discover$1(Load.scala:555)
at sbt.Load$.loadTransitive(Load.scala:584)
at sbt.Load$.loadProjects$1(Load.scala:452)
at sbt.Load$.loadUnit(Load.scala:456)
at sbt.Load$$anonfun$18$$anonfun$apply$11.apply(Load.scala:291)
at sbt.Load$$anonfun$18$$anonfun$apply$11.apply(Load.scala:291)
at sbt.BuildLoader$$anonfun$componentLoader$1$$anonfun$apply$4$$anonfun$apply$5$$anonfun$apply$6.apply(BuildLoader.scala:91)
at sbt.BuildLoader$$anonfun$componentLoader$1$$anonfun$apply$4$$anonfun$apply$5$$anonfun$apply$6.apply(BuildLoader.scala:90)
at sbt.BuildLoader.apply(BuildLoader.scala:140)
at sbt.Load$.loadAll(Load.scala:344)
at sbt.Load$.loadURI(Load.scala:299)
at sbt.Load$.load(Load.scala:295)
at sbt.Load$.load(Load.scala:286)
at sbt.Load$.apply(Load.scala:140)
at sbt.Load$.defaultLoad(Load.scala:36)
at sbt.BuiltinCommands$.liftedTree1$1(Main.scala:492)
at sbt.BuiltinCommands$.doLoadProject(Main.scala:492)
at sbt.BuiltinCommands$$anonfun$loadProjectImpl$2.apply(Main.scala:484)
at sbt.BuiltinCommands$$anonfun$loadProjectImpl$2.apply(Main.scala:484)
at sbt.Command$$anonfun$applyEffect$1$$anonfun$apply$2.apply(Command.scala:59)
at sbt.Command$$anonfun$applyEffect$1$$anonfun$apply$2.apply(Command.scala:59)
at sbt.Command$$anonfun$applyEffect$2$$anonfun$apply$3.apply(Command.scala:61)
at sbt.Command$$anonfun$applyEffect$2$$anonfun$apply$3.apply(Command.scala:61)
at sbt.Command$.process(Command.scala:93)
at sbt.MainLoop$$anonfun$1$$anonfun$apply$1.apply(MainLoop.scala:96)
at sbt.MainLoop$$anonfun$1$$anonfun$apply$1.apply(MainLoop.scala:96)
at sbt.State$$anon$1.process(State.scala:184)
at sbt.MainLoop$$anonfun$1.apply(MainLoop.scala:96)
at sbt.MainLoop$$anonfun$1.apply(MainLoop.scala:96)
at sbt.ErrorHandling$.wideConvert(ErrorHandling.scala:17)
at sbt.MainLoop$.next(MainLoop.scala:96)
at sbt.MainLoop$.run(MainLoop.scala:89)
at sbt.MainLoop$$anonfun$runWithNewLog$1.apply(MainLoop.scala:68)
at sbt.MainLoop$$anonfun$runWithNewLog$1.apply(MainLoop.scala:63)
at sbt.Using.apply(Using.scala:24)
at sbt.MainLoop$.runWithNewLog(MainLoop.scala:63)
at sbt.MainLoop$.runAndClearLast(MainLoop.scala:46)
at sbt.MainLoop$.runLoggedLoop(MainLoop.scala:30)
at sbt.MainLoop$.runLogged(MainLoop.scala:22)
at sbt.StandardMain$.runManaged(Main.scala:54)
at sbt.xMain.run(Main.scala:29)
at xsbt.boot.Launch$$anonfun$run$1.apply(Launch.scala:109)
at xsbt.boot.Launch$.withContextLoader(Launch.scala:128)
at xsbt.boot.Launch$.run(Launch.scala:109)
at xsbt.boot.Launch$$anonfun$apply$1.apply(Launch.scala:35)
at xsbt.boot.Launch$.launch(Launch.scala:117)
at xsbt.boot.Launch$.apply(Launch.scala:18)
at xsbt.boot.Boot$.runImpl(Boot.scala:41)
at xsbt.boot.Boot$.main(Boot.scala:17)
at xsbt.boot.Boot.main(Boot.scala)
error: error while loading package, class file '/home/user/.sbt/boot/scala-2.10.6/org.scala-sbt/sbt/0.13.11/sbt-0.13.11.jar(sbt/package.class)' is broken
(class java.lang.RuntimeException/error reading Scala signature of package.class: package macros contains object and package with same name: blackbox
one of them needs to be removed from classpath)
sbt.compiler.EvalException: Type error in expression
推荐答案
在此处复制@jrudolph的评论:
Copying @jrudolph's comment here:
FWIW会为以后遇到此问题的人提供一些建议，同时也会遇到插件类路径的问题.尝试将
scalacOptions ++= Seq("-verbose", "-Ylog-classpath")添加到project/plugins.sbt.当scala编译器在编译构建时加载类时，这将打印出详细信息.这应该提示冲突类来自哪个jar.
FWIW giving some advice to someone coming to this issue later on also having problems with plugin classpaths. Try adding
scalacOptions ++= Seq("-verbose", "-Ylog-classpath")toproject/plugins.sbt. This will print out detailed information when the scala compiler loads classes when compiling the build. This should give a hint from which the jar the conflicting classes came from.
这篇关于解决sbt中的jar加载冲突的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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