排除Intellij中的“無法解決的依賴”

Question

因此，我一直在努力學習Spark，Scala和Hadoop。 我目前正在嘗試構建我的Scala項目，但似乎遇到了一些SBT問題。

這是我的build.sbt：

name := "untitled2"

version := "0.1"

scalaVersion := "2.12.5"

val sparkVersion = "2.3.0"

libraryDependencies ++= Seq(
  "org.apache.spark" %% "spark-core" % sparkVersion
)

嘗試刷新項目后的控制台結果：

Error while importing sbt project:

Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=384M; support was removed in 8.0
[info] Loading settings from idea.sbt ...
[info] Loading global plugins from /Users/jeanmac/.sbt/1.0/plugins
[info] Loading project definition from /Users/jeanmac/Downloads/untitled2/project
[info] Loading settings from build.sbt ...
[info] Set current project to untitled2 (in build file:/Users/jeanmac/Downloads/untitled2/)
[info] sbt server started at local:///Users/jeanmac/.sbt/1.0/server/85e9f47a00bae4fc214a/sock
sbt:untitled2>
[info] Defining Global / sbtStructureOptions, Global / sbtStructureOutputFile, shellPrompt
[info] The new values will be used by no settings or tasks.
[info] Reapplying settings...
[info] Set current project to untitled2 (in build file:/Users/jeanmac/Downloads/untitled2/)
[info] Applying State transformations org.jetbrains.sbt.CreateTasks from /Users/jeanmac/Library/Application Support/IntelliJIdea2017.3/Scala/launcher/sbt-structure-1.0.jar
[info] Reapplying settings...
[info] Set current project to untitled2 (in build file:/Users/jeanmac/Downloads/untitled2/)
[info] Updating ...
[warn]  module not found: org.apache.spark#spark-core_2.12;2.3.0
[warn] ==== local: tried
[warn]   /Users/jeanmac/.ivy2/local/org.apache.spark/spark-core_2.12/2.3.0/ivys/ivy.xml
[warn] ==== public: tried
[warn]   https://repo1.maven.org/maven2/org/apache/spark/spark-core_2.12/2.3.0/spark-core_2.12-2.3.0.pom
[warn] ==== local-preloaded-ivy: tried
[warn]   /Users/jeanmac/.sbt/preloaded/org.apache.spark/spark-core_2.12/2.3.0/ivys/ivy.xml
[warn] ==== local-preloaded: tried
[warn]   file:////Users/jeanmac/.sbt/preloaded/org/apache/spark/spark-core_2.12/2.3.0/spark-core_2.12-2.3.0.pom
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
[warn]  ::          UNRESOLVED DEPENDENCIES         ::
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
[warn]  :: org.apache.spark#spark-core_2.12;2.3.0: not found
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
[warn]
[warn]  Note: Unresolved dependencies path:
[warn]      org.apache.spark:spark-core_2.12:2.3.0 (/Users/jeanmac/Downloads/untitled2/build.sbt#L9-12)
[warn]        +- default:untitled2_2.12:0.1
[error] sbt.librarymanagement.ResolveException: unresolved dependency: org.apache.spark#spark-core_2.12;2.3.0: not found
[error]     at sbt.internal.librarymanagement.IvyActions$.resolveAndRetrieve(IvyActions.scala:331)
[error]     at sbt.internal.librarymanagement.IvyActions$.$anonfun$updateEither$1(IvyActions.scala:205)
[error]     at sbt.internal.librarymanagement.IvySbt$Module.$anonfun$withModule$1(Ivy.scala:243)
[error]     at sbt.internal.librarymanagement.IvySbt.$anonfun$withIvy$1(Ivy.scala:204)
[error]     at sbt.internal.librarymanagement.IvySbt.sbt$internal$librarymanagement$IvySbt$$action$1(Ivy.scala:70)
[error]     at sbt.internal.librarymanagement.IvySbt$$anon$3.call(Ivy.scala:77)
[error]     at xsbt.boot.Locks$GlobalLock.withChannel$1(Locks.scala:93)
[error]     at xsbt.boot.Locks$GlobalLock.xsbt$boot$Locks$GlobalLock$$withChannelRetries$1(Locks.scala:78)
[error]     at xsbt.boot.Locks$GlobalLock$$anonfun$withFileLock$1.apply(Locks.scala:97)
[error]     at xsbt.boot.Using$.withResource(Using.scala:10)
[error]     at xsbt.boot.Using$.apply(Using.scala:9)
[error]     at xsbt.boot.Locks$GlobalLock.ignoringDeadlockAvoided(Locks.scala:58)
[error]     at xsbt.boot.Locks$GlobalLock.withLock(Locks.scala:48)
[error]     at xsbt.boot.Locks$.apply0(Locks.scala:31)
[error]     at xsbt.boot.Locks$.apply(Locks.scala:28)
[error]     at sbt.internal.librarymanagement.IvySbt.withDefaultLogger(Ivy.scala:77)
[error]     at sbt.internal.librarymanagement.IvySbt.withIvy(Ivy.scala:199)
[error]     at sbt.internal.librarymanagement.IvySbt.withIvy(Ivy.scala:196)
[error]     at sbt.internal.librarymanagement.IvySbt$Module.withModule(Ivy.scala:242)
[error]     at sbt.internal.librarymanagement.IvyActions$.updateEither(IvyActions.scala:190)
[error]     at sbt.librarymanagement.ivy.IvyDependencyResolution.update(IvyDependencyResolution.scala:20)
[error]     at sbt.librarymanagement.DependencyResolution.update(DependencyResolution.scala:56)
[error]     at sbt.internal.LibraryManagement$.resolve$1(LibraryManagement.scala:46)
[error]     at sbt.internal.LibraryManagement$.$anonfun$cachedUpdate$12(LibraryManagement.scala:99)
[error]     at sbt.util.Tracked$.$anonfun$lastOutput$1(Tracked.scala:68)
[error]     at sbt.internal.LibraryManagement$.$anonfun$cachedUpdate$19(LibraryManagement.scala:112)
[error]     at scala.util.control.Exception$Catch.apply(Exception.scala:224)
[error]     at sbt.internal.LibraryManagement$.$anonfun$cachedUpdate$11(LibraryManagement.scala:112)
[error]     at sbt.internal.LibraryManagement$.$anonfun$cachedUpdate$11$adapted(LibraryManagement.scala:95)
[error]     at sbt.util.Tracked$.$anonfun$inputChanged$1(Tracked.scala:149)
[error]     at sbt.internal.LibraryManagement$.cachedUpdate(LibraryManagement.scala:126)
[error]     at sbt.Classpaths$.$anonfun$updateTask$5(Defaults.scala:2383)
[error]     at scala.Function1.$anonfun$compose$1(Function1.scala:44)
[error]     at sbt.internal.util.$tilde$greater.$anonfun$$u2219$1(TypeFunctions.scala:39)
[error]     at sbt.std.Transform$$anon$4.work(System.scala:66)
[error]     at sbt.Execute.$anonfun$submit$2(Execute.scala:262)
[error]     at sbt.internal.util.ErrorHandling$.wideConvert(ErrorHandling.scala:16)
[error]     at sbt.Execute.work(Execute.scala:271)
[error]     at sbt.Execute.$anonfun$submit$1(Execute.scala:262)
[error]     at sbt.ConcurrentRestrictions$$anon$4.$anonfun$submitValid$1(ConcurrentRestrictions.scala:174)
[error]     at sbt.CompletionService$$anon$2.call(CompletionService.scala:36)
[error]     at java.util.concurrent.FutureTask.run(FutureTask.java:266)
[error]     at java.util.concurrent.Executors$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$Worker.run(ThreadPoolExecutor.java:624)
[error]     at java.lang.Thread.run(Thread.java:748)
[error] sbt.librarymanagement.ResolveException: unresolved dependency: org.apache.spark#spark-core_2.12;2.3.0: not found
[error]     at sbt.internal.librarymanagement.IvyActions$.resolveAndRetrieve(IvyActions.scala:331)
[error]     at sbt.internal.librarymanagement.IvyActions$.$anonfun$updateEither$1(IvyActions.scala:205)
[error]     at sbt.internal.librarymanagement.IvySbt$Module.$anonfun$withModule$1(Ivy.scala:243)
[error]     at sbt.internal.librarymanagement.IvySbt.$anonfun$withIvy$1(Ivy.scala:204)
[error]     at sbt.internal.librarymanagement.IvySbt.sbt$internal$librarymanagement$IvySbt$$action$1(Ivy.scala:70)
[error]     at sbt.internal.librarymanagement.IvySbt$$anon$3.call(Ivy.scala:77)
[error]     at xsbt.boot.Locks$GlobalLock.withChannel$1(Locks.scala:93)
[error]     at xsbt.boot.Locks$GlobalLock.xsbt$boot$Locks$GlobalLock$$withChannelRetries$1(Locks.scala:78)
[error]     at xsbt.boot.Locks$GlobalLock$$anonfun$withFileLock$1.apply(Locks.scala:97)
[error]     at xsbt.boot.Using$.withResource(Using.scala:10)
[error]     at xsbt.boot.Using$.apply(Using.scala:9)
[error]     at xsbt.boot.Locks$GlobalLock.ignoringDeadlockAvoided(Locks.scala:58)
[error]     at xsbt.boot.Locks$GlobalLock.withLock(Locks.scala:48)
[error]     at xsbt.boot.Locks$.apply0(Locks.scala:31)
[error]     at xsbt.boot.Locks$.apply(Locks.scala:28)
[error]     at sbt.internal.librarymanagement.IvySbt.withDefaultLogger(Ivy.scala:77)
[error]     at sbt.internal.librarymanagement.IvySbt.withIvy(Ivy.scala:199)
[error]     at sbt.internal.librarymanagement.IvySbt.withIvy(Ivy.scala:196)
[error]     at sbt.internal.librarymanagement.IvySbt$Module.withModule(Ivy.scala:242)
[error]     at sbt.internal.librarymanagement.IvyActions$.updateEither(IvyActions.scala:190)
[error]     at sbt.librarymanagement.ivy.IvyDependencyResolution.update(IvyDependencyResolution.scala:20)
[error]     at sbt.librarymanagement.DependencyResolution.update(DependencyResolution.scala:56)
[error]     at sbt.internal.LibraryManagement$.resolve$1(LibraryManagement.scala:46)
[error]     at sbt.internal.LibraryManagement$.$anonfun$cachedUpdate$12(LibraryManagement.scala:99)
[error]     at sbt.util.Tracked$.$anonfun$lastOutput$1(Tracked.scala:68)
[error]     at sbt.internal.LibraryManagement$.$anonfun$cachedUpdate$19(LibraryManagement.scala:112)
[error]     at scala.util.control.Exception$Catch.apply(Exception.scala:224)
[error]     at sbt.internal.LibraryManagement$.$anonfun$cachedUpdate$11(LibraryManagement.scala:112)
[error]     at sbt.internal.LibraryManagement$.$anonfun$cachedUpdate$11$adapted(LibraryManagement.scala:95)
[error]     at sbt.util.Tracked$.$anonfun$inputChanged$1(Tracked.scala:149)
[error]     at sbt.internal.LibraryManagement$.cachedUpdate(LibraryManagement.scala:126)
[error]     at sbt.Classpaths$.$anonfun$updateTask$5(Defaults.scala:2383)
[error]     at scala.Function1.$anonfun$compose$1(Function1.scala:44)
[error]     at sbt.internal.util.$tilde$greater.$anonfun$$u2219$1(TypeFunctions.scala:39)
[error]     at sbt.std.Transform$$anon$4.work(System.scala:66)
[error]     at sbt.Execute.$anonfun$submit$2(Execute.scala:262)
[error]     at sbt.internal.util.ErrorHandling$.wideConvert(ErrorHandling.scala:16)
[error]     at sbt.Execute.work(Execute.scala:271)
[error]     at sbt.Execute.$anonfun$submit$1(Execute.scala:262)
[error]     at sbt.ConcurrentRestrictions$$anon$4.$anonfun$submitValid$1(ConcurrentRestrictions.scala:174)
[error]     at sbt.CompletionService$$anon$2.call(CompletionService.scala:36)
[error]     at java.util.concurrent.FutureTask.run(FutureTask.java:266)
[error]     at java.util.concurrent.Executors$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:748)
[error] (update) sbt.librarymanagement.ResolveException: unresolved dependency: org.apache.spark#spark-core_2.12;2.3.0: not found

[error] (ssExtractDependencies) sbt.librarymanagement.ResolveException: unresolved dependency: org.apache.spark#spark-core_2.12;2.3.0: not found
[error] Total time: 1 s, completed Mar 20, 2018 8:09:03 PM
[info] shutting down server

因此，我一直在網上尋求幫助。 大多數結果取決於如何編寫libraryDependencies 。

以下是有關我當前環境的更多信息：

• OS X
• Java：java 9.0.4 Java（TM）SE運行時環境（內部版本9.0.4 + 11）Java HotSpot（TM）64位服務器VM（內部版本9.0.4 + 11，混合模式）
• Scala：Scala 2.12.5（Java HotSpot（TM）64位服務器VM，Java 9.0.4）。
• Spark：使用Scala 2.11.8版的2.3.0版（Java HotSpot（TM）64位服務器VM，Java 1.8.0_162）
• 的IntelliJ

我目前不知道為什么我的代碼無法構建。 我不確定是否遺漏了一些東西。

Answer 1

您需要添加一個解析器，該解析器指向具有這些庫的存儲庫。 將以下內容添加到您的sbt中：

resolvers  += "MavenRepository" at "http://central.maven.org/maven2"

更新：

看起來Spark團隊還沒有針對Scala 2.12的構建。 在build.sbt中，當前的scala目標版本為2.12。 嘗試將其更改為2.11版本。 參考： https : //issues.apache.org/jira/browse/SPARK-14220