Scala 使用sbt编译spark项目时未解决的依赖关系问题
我正试图用Scala 使用sbt编译spark项目时未解决的依赖关系问题,scala,apache-spark,sbt,Scala,Apache Spark,Sbt,我正试图用sbt0.13.8编译一个非常简单的spark项目,它的唯一功能是 Test.scala import org.apache.spark.SparkContext import org.apache.spark.SparkContext._ import org.apache.spark.SparkConf object SimpleApp { def main(args: Array[String]) { val logFile = "YOUR_SPARK_HOME/R
sbt0.13.8
编译一个非常简单的spark项目,它的唯一功能是
Test.scala
import org.apache.spark.SparkContext
import org.apache.spark.SparkContext._
import org.apache.spark.SparkConf
object SimpleApp {
def main(args: Array[String]) {
val logFile = "YOUR_SPARK_HOME/README.md" // Should be some file on your system
val conf = new SparkConf().setAppName("Simple Application")
val sc = new SparkContext(conf)
val logData = sc.textFile(logFile, 2).cache()
val numAs = logData.filter(line => line.contains("a")).count()
val numBs = logData.filter(line => line.contains("b")).count()
println("Lines with a: %s, Lines with b: %s".format(numAs, numBs))
}
}
projet根目录中的build.sbt文件如下所示:
name := "Test"
version := "1.0"
scalaVersion := "2.11.7"
libraryDependencies += "org.apache.spark" %% "spark-core" % "1.5.2"
resolvers ++= Seq(
"Apache Repository" at "https://repository.apache.org/content/repositories/releases/",
"Cloudera Repository" at "https://repository.cloudera.com/artifactory/cloudera-repos/",
Resolver.sonatypeRepo("public")
)
sbt compile
返回的错误为:
[warn] ::::::::::::::::::::::::::::::::::::::::::::::
[warn] :: UNRESOLVED DEPENDENCIES ::
[warn] ::::::::::::::::::::::::::::::::::::::::::::::
[warn] :: oro#oro;2.0.8: configuration not found in oro#oro;2.0.8: 'master(compile)'. Missing configuration: 'compile'. It was required from org.apache.spark#spark-core_2.11;1.5.2 compile
[warn] ::::::::::::::::::::::::::::::::::::::::::::::
[warn]
[warn] Note: Unresolved dependencies path:
[warn] oro:oro:2.0.8
[warn] +- org.apache.spark:spark-core_2.11:1.5.2 (/home/osboxes/Documents/bookings/Test/build.sbt#L7-8)
[warn] +- default:test_2.11:1.0
sbt.ResolveException: unresolved dependency: oro#oro;2.0.8: configuration not found in oro#oro;2.0.8: 'master(compile)'. Missing configuration: 'compile'. It was required from org.apache.spark#spark-core_2.11;1.5.2 compile
at sbt.IvyActions$.sbt$IvyActions$$resolve(IvyActions.scala:291)
at sbt.IvyActions$$anonfun$updateEither$1.apply(IvyActions.scala:188)
at sbt.IvyActions$$anonfun$updateEither$1.apply(IvyActions.scala:165)
at sbt.IvySbt$Module$$anonfun$withModule$1.apply(Ivy.scala:155)
at sbt.IvySbt$Module$$anonfun$withModule$1.apply(Ivy.scala:155)
at sbt.IvySbt$$anonfun$withIvy$1.apply(Ivy.scala:132)
at sbt.IvySbt.sbt$IvySbt$$action$1(Ivy.scala:57)
at sbt.IvySbt$$anon$4.call(Ivy.scala:65)
at xsbt.boot.Locks$GlobalLock.withChannel$1(Locks.scala:93)
at xsbt.boot.Locks$GlobalLock.xsbt$boot$Locks$GlobalLock$$withChannelRetries$1(Locks.scala:78)
at xsbt.boot.Locks$GlobalLock$$anonfun$withFileLock$1.apply(Locks.scala:97)
at xsbt.boot.Using$.withResource(Using.scala:10)
at xsbt.boot.Using$.apply(Using.scala:9)
at xsbt.boot.Locks$GlobalLock.ignoringDeadlockAvoided(Locks.scala:58)
at xsbt.boot.Locks$GlobalLock.withLock(Locks.scala:48)
at xsbt.boot.Locks$.apply0(Locks.scala:31)
at xsbt.boot.Locks$.apply(Locks.scala:28)
at sbt.IvySbt.withDefaultLogger(Ivy.scala:65)
at sbt.IvySbt.withIvy(Ivy.scala:127)
at sbt.IvySbt.withIvy(Ivy.scala:124)
at sbt.IvySbt$Module.withModule(Ivy.scala:155)
at sbt.IvyActions$.updateEither(IvyActions.scala:165)
at sbt.Classpaths$$anonfun$sbt$Classpaths$$work$1$1.apply(Defaults.scala:1369)
at sbt.Classpaths$$anonfun$sbt$Classpaths$$work$1$1.apply(Defaults.scala:1365)
at sbt.Classpaths$$anonfun$doWork$1$1$$anonfun$87.apply(Defaults.scala:1399)
at sbt.Classpaths$$anonfun$doWork$1$1$$anonfun$87.apply(Defaults.scala:1397)
at sbt.Tracked$$anonfun$lastOutput$1.apply(Tracked.scala:37)
at sbt.Classpaths$$anonfun$doWork$1$1.apply(Defaults.scala:1402)
at sbt.Classpaths$$anonfun$doWork$1$1.apply(Defaults.scala:1396)
at sbt.Tracked$$anonfun$inputChanged$1.apply(Tracked.scala:60)
at sbt.Classpaths$.cachedUpdate(Defaults.scala:1419)
at sbt.Classpaths$$anonfun$updateTask$1.apply(Defaults.scala:1348)
at sbt.Classpaths$$anonfun$updateTask$1.apply(Defaults.scala:1310)
at scala.Function1$$anonfun$compose$1.apply(Function1.scala:47)
at sbt.$tilde$greater$$anonfun$$u2219$1.apply(TypeFunctions.scala:40)
at sbt.std.Transform$$anon$4.work(System.scala:63)
at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:226)
at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:226)
at sbt.ErrorHandling$.wideConvert(ErrorHandling.scala:17)
at sbt.Execute.work(Execute.scala:235)
at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:226)
at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:226)
at sbt.ConcurrentRestrictions$$anon$4$$anonfun$1.apply(ConcurrentRestrictions.scala:159)
at sbt.CompletionService$$anon$2.call(CompletionService.scala:28)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
[error] (*:update) sbt.ResolveException: unresolved dependency: oro#oro;2.0.8: configuration not found in oro#oro;2.0.8: 'master(compile)'. Missing configuration: 'compile'. It was required from org.apache.spark#spark-core_2.11;1.5.2 compile
我如何解决这个依赖性问题
编辑
我听从了@mark91的建议:
- 将scala版本更改为
2.10.5
- 将spark依赖项更改为
”libraryDependencies+=“org.apache.spark”%”spark-core_2.10“%”1.2.0-cdh5.3.2“%”提供的“
[error] sbt.ResolveException: unresolved dependency: org.scala-lang#scala-library;2.10.4: configuration not found in org.scala-lang#scala-library;2.10.4: 'master(compile)'. Missing configuration: 'compile'. It was required from org.apache.spark#spark-core_2.10;1.2.0-cdh5.3.2 compile
你知道我为什么会遇到这个问题吗?你的问题是Spark是用Scala 2.10编写的。因此,您应该使用Scala的2.10版,而不是2.11版 例如:
scalaVersion := "2.10.5"
libraryDependencies += "org.apache.spark" % "spark-core_2.10" % "1.2.0-cdh5.3.2" % "provided"
resolvers += "Cloudera Repository" at "https://repository.cloudera.com/artifactory/cloudera-repos/"
我有一个类似的依赖性问题,通过重新加载插件和更新依赖性解决了这个问题。我认为你的依赖问题是由于常春藤缓存。通常,如果自上次成功解析以来没有更改依赖项管理配置,并且检索到的文件仍然存在,sbt不会要求Ivy执行解析 尝试运行:
sbt reload plugins
sbt update
sbt reload
如果不起作用,请按照与@mgaido相同的原因上的说明进行操作:使用不同版本的Scala会导致此问题。
但有时,即使我们稍后更改为scala的正确版本,我们的缓存仍然可能有旧版本。在这种情况下,我们可以删除
~/.ivy2
文件夹。当我使用Scala 2.10(准确地说是2.10.4)时,我得到了一些错误。另外,还有两个未解决的依赖项:org.scala lang#scala库;2.10.4
和org.scala lang#scala reflect;2.10.4
您的新解决方案仍然存在问题:[错误]sbt.ResolveException:未解决的依赖项:org.scala lang#scala library;2.10.4:org.scala lang#scala库中未找到配置;2.10.4:‘主(编译)’。缺少配置:“编译”。它是org.apache.spark#spark-core_2.10所要求的;1.2.0-cdh5.3.2编译
我觉得很奇怪…我正在使用它成功编译的那个文件…1.x系列文档可以在这里找到: