我正在尝试关注Self-Contained Applications Tutorial并尝试使用sbt
和scala
进行构建,但在从sbt package
调用C:\Users\00926133\test
时遇到以下错误}:
[info] Set current project to Simple Project (in build file:/C:/Users/00926133/test/)
[info] Updating {file:/C:/Users/00926133/test/}test...
[info] Resolving org.scala-lang#scala-library;2.10.4 ...
[info] Resolving org.scala-lang#scala-library;2.10.4 ...
[error] Unable to find credentials for [ @ XXXX].
[info] Resolving org.apache.spark#spark-core_2.10;1.4.0 ...
[info] Resolving org.apache.spark#spark-core_2.10;1.4.0 ...
[info] Resolving org.scala-lang#scala-compiler;2.10.4 ...
[info] Resolving org.scala-lang#scala-compiler;2.10.4 ...
[warn] ::::::::::::::::::::::::::::::::::::::::::::::
[warn] :: UNRESOLVED DEPENDENCIES ::
[warn] ::::::::::::::::::::::::::::::::::::::::::::::
[warn] :: org.scala-lang#scala-library;2.10.4: java.util.NoSuchElementException
[warn] :: org.apache.spark#spark-core_2.10;1.4.0: java.util.NoSuchElementException
[warn] :: org.scala-lang#scala-compiler;2.10.4: java.util.NoSuchElementException
[warn] ::::::::::::::::::::::::::::::::::::::::::::::
[warn]
[warn] Note: Unresolved dependencies path:
[warn] org.scala-lang:scala-library:2.10.4 ((sbt.Classpaths) Defaults.scala#L1203)
[warn] +- simple-project:simple-project_2.10:1.0
[warn] org.apache.spark:spark-core_2.10:1.4.0 (C:\Users\00926133\test\simple.sbt#L7-8)
[warn] +- simple-project:simple-project_2.10:1.0
[warn] org.scala-lang:scala-compiler:2.10.4
[warn] +- simple-project:simple-project_2.10:1.0
sbt.ResolveException: unresolved dependency: org.scala-lang#scala-library;2.10.4: java.util.NoSuchElementException
unresolved dependency: org.apache.spark#spark-core_2.10;1.4.0: java.util.NoSuchElementException
unresolved dependency: org.scala-lang#scala-compiler;2.10.4: java.util.NoSuchElementException
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$2.call(CompletionService.scala:28)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
[error] (*:update) sbt.ResolveException: unresolved dependency: org.scala-lang#scala-library;2.10.4: java.util.NoSuchElementException
[error] unresolved dependency: org.apache.spark#spark-core_2.10;1.4.0: java.util.NoSuchElementException
[error] unresolved dependency: org.scala-lang#scala-compiler;2.10.4: java.util.NoSuchElementException
[error] Total time: 1 s, completed Jun 26, 2015 9:13:40 AM
我成功运行了spark-shell
和scala
,以及python
和R
的火花示例。我也尝试删除.ivy
文件夹。
simple.sbt
文件:
name := "Simple Project"
version := "1.0"
scalaVersion := "2.10.4"
libraryDependencies += "org.apache.spark" % "spark-core_2.10" % "1.4.0"
其他信息
scala -version
== 2.10.4 sbt sbt-version
== 0.13.8 simple.sbt
文件位于C:\Users\00926133\test
SimpleApp.scala
位于C:\Users\00926133\test\src\main\scala
C:\Users\00926133\spark-1.4.0-bin-hadoop2.6
我查看了几个Stack Overflow帖子,但是那里显示的解决方案似乎没有给我任何牵引力。
<小时/>
更新
我能够确认这是代理相关的问题。但是,我仍然无法在我的代理后面构建。这是在Windows上,我有以下内容:
环境变量
SBT_OPTS = -Dhttp.proxyHost=<myhost> -Dhttp.proxyPort=<myport> -Dhttp.proxyUser=<myuser> -Dhttp.proxyPassword=<mypassword> -Dhttps.proxyHost=<myhost> -Dhttps.proxyPort=<myport> -Dhttps.proxyUser=<myuser> -Dhttps.proxyPassword=<mypassword>
JAVA_OPTS = -Dhttp.proxyHost=<myhost> -Dhttp.proxyPort=<myport> -Dhttp.proxyUser=<myuser> -Dhttp.proxyPassword=<mypassword> -Dhttps.proxyHost=<myhost> -Dhttps.proxyPort=<myport> -Dhttps.proxyUser=<myuser> -Dhttps.proxyPassword=<mypassword>
我还将以下行添加到位于sbtconfig.txt
下的..\sbt\conf
:
-Dhttp.proxyHost=<myhost>
-Dhttp.proxyPort=<myport>
-Dhttp.proxyUser=<myuser>
-Dhttp.proxyPassword=<mypassword>
-Dhttps.proxyHost=<myhost>
-Dhttps.proxyPort=<myport>
-Dhttps.proxyUser=<myuser>
-Dhttps.proxyPassword=<mypassword>
任何能够(a)以外行人的方式解释sbt package
正在做什么,(b)如何解释simple.sbt
文件,和/或( c)弄清楚如何解决[error] Unable to find credentials for [ @ XXXX ]
- XXXX是我工作的代理服务器。
答案 0 :(得分:3)
我在SBT source code中找到了您的第一个错误(按时间顺序排列)的源代码,并附有评论“我们保证只有在Ivy的身份验证失败时才能到达此处”。由于剩余的错误无法找到依赖项,因此看起来代理会导致问题。
您是否看到了问题How to use sbt from behind proxy?您是否尝试过这些步骤?
SBT使用Ivy在本地缓存依赖关系,这样一旦你获取了特定依赖关系的特定版本,就不必再去Internet上再次获取它了。在Windows中,您可以在C:\Users\<User Name>\.ivy2
中查看常春藤缓存的内容
看起来SBT无法通过您公司的代理导致它无法获取第三方依赖项,从而导致构建失败。如果您还没有尝试过,请尝试在SBT命令行或环境变量中设置代理配置。由于您使用的是Windows,只需将-Dhttp.proxyHost=yourserver -Dhttp.proxyPort=port ...
添加到SBT命令行即可。确保添加所有必需参数,具体取决于代理所需的内容。 (它需要用户名/密码吗?)
SBT是Scala的“简单构建工具”。 SBT文件是用Scala编写的。 SBT中的类具有定义的运算符,这些运算符会根据您的构建文件导致您请求的构建操作。当您运行sbt package
时,您要求构建工具构建并打包当前项目。
Spark quick start解释了simple.sbt
文件的高级别。通常,SBT构建文件提供项目名称和版本,定义所需的Scala版本,列出第三方依赖项,并且通常说明了整个构建和打包过程所需的所有内容。