我是IntelliJ IDEA，Scala，sbt等的新手。我只是尝试设置我的项目没有代码，添加了库依赖项并添加了assembly.sbt来创建fat / uber jar。这是我的详细信息，但我得到了SSLHandshakeException的未解决的依赖问题。
在设置项目sbt版本时选择以下内容：1.2.3 scala版本：2.11.8，
build.sbt
name := "untitled4"
version := "0.1"
scalaVersion := "2.11.8"
libraryDependencies += "org.apache.spark" %% "spark-core" % "2.3.0" % "provided"
libraryDependencies += "org.apache.spark" %% "spark-sql" % "2.3.0" % "provided"
assemblyMergeStrategy in assembly := {
case PathList("META-INF", xs @ _*) => MergeStrategy.discard
case x => MergeStrategy.first
}
build.properties
sbt.version = 1.2.3
项目下的assembly.sbt /
addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "0.14.6")
我不明白两件事，为什么它默认为scala 2.12和sbt 1.0（参见下面的堆栈跟踪）以及为什么未解决的依赖项错误。
我已经尝试将证书添加到我的密钥库中，认为它可能没有成功。
我也尝试访问它在下面的堆栈跟踪中提供的url，我收到此错误“找不到请求的路径。”
stacktrace导入sbt项目时出错：
[info] Loading global plugins from C:\Users\xxxxx\.sbt\1.0\plugins
[info] Loading settings for project untitled4-build from assembly.sbt ...
[info] Loading project definition from C:\Users\xxxxx\IdeaProjects\untitled4\project
[info] Updating ProjectRef(uri("file:/C:/Users/xxxxx/IdeaProjects/untitled4/project/"), "untitled4-build")...
[warn] ::::::::::::::::::::::::::::::::::::::::::::::
[warn] :: UNRESOLVED DEPENDENCIES ::
[warn] ::::::::::::::::::::::::::::::::::::::::::::::
[warn] :: com.eed3si9n#sbt-assembly;0.14.6: Resolution failed several times for dependency: com.eed3si9n#sbt-assembly;0.14.6 {compile=[default(compile)]}::
[warn] typesafe-ivy-releases: unable to get resource for com.eed3si9n#sbt-assembly;0.14.6: res=https://repo.typesafe.com/typesafe/ivy-releases/com.eed3si9n/sbt-assembly/scala_2.12/sbt_1.0/0.14.6/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[warn] sbt-plugin-releases: unable to get resource for com.eed3si9n#sbt-assembly;0.14.6: res=https://repo.scala-sbt.org/scalasbt/sbt-plugin-releases/com.eed3si9n/sbt-assembly/scala_2.12/sbt_1.0/0.14.6/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[warn] ::::::::::::::::::::::::::::::::::::::::::::::
[warn]
[warn] Note: Some unresolved dependencies have extra attributes. Check that these dependencies exist with the requested attributes.
[warn] com.eed3si9n:sbt-assembly:0.14.6 (scalaVersion=2.12, sbtVersion=1.0)
[warn]
[warn] Note: Unresolved dependencies path:
[warn] com.eed3si9n:sbt-assembly:0.14.6 (scalaVersion=2.12, sbtVersion=1.0) (C:\Users\xxxxx\IdeaProjects\untitled4\project\assembly.sbt#L1-2)
[warn] +- default:untitled4-build:0.1.0-SNAPSHOT (scalaVersion=2.12, sbtVersion=1.0)
[error] sbt.librarymanagement.ResolveException: unresolved dependency: com.eed3si9n#sbt-assembly;0.14.6: Resolution failed several times for dependency: com.eed3si9n#sbt-assembly;0.14.6 {compile=[default(compile)]}::
[error] typesafe-ivy-releases: unable to get resource for com.eed3si9n#sbt-assembly;0.14.6: res=https://repo.typesafe.com/typesafe/ivy-releases/com.eed3si9n/sbt-assembly/scala_2.12/sbt_1.0/0.14.6/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[error] sbt-plugin-releases: unable to get resource for com.eed3si9n#sbt-assembly;0.14.6: res=https://repo.scala-sbt.org/scalasbt/sbt-plugin-releases/com.eed3si9n/sbt-assembly/scala_2.12/sbt_1.0/0.14.6/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[error]
[error] at sbt.internal.librarymanagement.IvyActions$.resolveAndRetrieve(IvyActions.scala:332)
[error] at sbt.internal.librarymanagement.IvyActions$.$anonfun$updateEither$1(IvyActions.scala:208)
[error] at sbt.internal.librarymanagement.IvySbt$Module.$anonfun$withModule$1(Ivy.scala:239)
[error] at sbt.internal.librarymanagement.IvySbt.$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$1(Locks.scala:95)
[error] at xsbt.boot.Locks$GlobalLock.xsbt$boot$Locks$GlobalLock$$withChannelRetries$1(Locks.scala:80)
[error] at xsbt.boot.Locks$GlobalLock$$anonfun$withFileLock$1.apply(Locks.scala:99)
[error] at xsbt.boot.Using$.withResource(Using.scala:10)
[error] at xsbt.boot.Using$.apply(Using.scala:9)
[error] at xsbt.boot.Locks$GlobalLock.ignoringDeadlockAvoided(Locks.scala:60)
[error] at xsbt.boot.Locks$GlobalLock.withLock(Locks.scala:50)
[error] at xsbt.boot.Locks$.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:238)
[error] at sbt.internal.librarymanagement.IvyActions$.updateEither(IvyActions.scala:193)
[error] at sbt.librarymanagement.ivy.IvyDependencyResolution.update(IvyDependencyResolution.scala:20)
[error] at sbt.librarymanagement.DependencyResolution.update(DependencyResolution.scala:56)
[error] at sbt.internal.LibraryManagement$.resolve$1(LibraryManagement.scala:45)
[error] at sbt.internal.LibraryManagement$.$anonfun$cachedUpdate$12(LibraryManagement.scala:93)
[error] at sbt.util.Tracked$.$anonfun$lastOutput$1(Tracked.scala:68)
[error] at sbt.internal.LibraryManagement$.$anonfun$cachedUpdate$19(LibraryManagement.scala:106)
[error] at scala.util.control.Exception$Catch.apply(Exception.scala:224)
[error] at sbt.internal.LibraryManagement$.$anonfun$cachedUpdate$11(LibraryManagement.scala:106)
[error] at sbt.internal.LibraryManagement$.$anonfun$cachedUpdate$11$adapted(LibraryManagement.scala:89)
[error] at sbt.util.Tracked$.$anonfun$inputChanged$1(Tracked.scala:149)
[error] at sbt.internal.LibraryManagement$.cachedUpdate(LibraryManagement.scala:120)
[error] at sbt.Classpaths$.$anonfun$updateTask$5(Defaults.scala:2550)
[error] at scala.Function1.$anonfun$compose$1(Function1.scala:44)
[error] at sbt.internal.util.$tilde$greater.$anonfun$$u2219$1(TypeFunctions.scala:40)
[error] at sbt.std.Transform$$anon$4.work(System.scala:67)
[error] at sbt.Execute.$anonfun$submit$2(Execute.scala:269)
[error] at sbt.internal.util.ErrorHandling$.wideConvert(ErrorHandling.scala:16)
[error] at sbt.Execute.work(Execute.scala:278)
[error] at sbt.Execute.$anonfun$submit$1(Execute.scala:269)
[error] at sbt.ConcurrentRestrictions$$anon$4.$anonfun$submitValid$1(ConcurrentRestrictions.scala:178)
[error] at sbt.CompletionService$$anon$2.call(CompletionService.scala:37)
[error] at java.util.concurrent.FutureTask.run(FutureTask.java:266)
[error] at java.util.concurrent.Executors$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: com.eed3si9n#sbt-assembly;0.14.6: Resolution failed several times for dependency: com.eed3si9n#sbt-assembly;0.14.6 {compile=[default(compile)]}::
[error] typesafe-ivy-releases: unable to get resource for com.eed3si9n#sbt-assembly;0.14.6: res=https://repo.typesafe.com/typesafe/ivy-releases/com.eed3si9n/sbt-assembly/scala_2.12/sbt_1.0/0.14.6/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[error] sbt-plugin-releases: unable to get resource for com.eed3si9n#sbt-assembly;0.14.6: res=https://repo.scala-sbt.org/scalasbt/sbt-plugin-releases/com.eed3si9n/sbt-assembly/scala_2.12/sbt_1.0/0.14.6/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
Invalid response.
这里的一个混乱是sbt本身运行的Scala版本，以及项目的版本。 sbt 1.x在Scala 2.12上运行，这就是您收到显示此版本的消息的原因。
下一个混淆是在sbt的“二进制兼容性”版本和您正在运行的版本之间。 sbt的所有1.x版本都具有“二进制”版本1.0。
这里的实际错误是这部分：
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
这可能是因为您的JDK和包含的SSL证书已过期。您正在运行哪个JDK并升级到当前版本的JDK8帮助？
将此解析器添加到assembly.sbt
resolvers += Resolver.bintrayIvyRepo("com.eed3si9n", "sbt-plugins")
此外，如果您使用任何配置（.conf）文件，请将此行添加到您的合并策略中
case "reference.conf" => MergeStrategy.concat