由于找不到依赖项而导致编译Scala程序失败

Posted 2021-04-13

我已经安装了Flink，Scala和sbtFlink版本：1.9.1Scala版本：2.10.6Sbt版本：1.3.7

我在build.sbt中进行了相关更改。编译命令失败这是相关信息。非常感谢任何信息

**版本信息

[[osboxes @ osboxes local] $ scala -version

Scala代码运行程序版本2.10.6-版权所有2002-2013，LAMP / EPFL

[[osboxes @ osboxes local] $ flink --version

版本：1.9.1，提交ID：4d56de8

[[osboxes @ osboxes readcsvfile] $ sbt -version

此项目中的sbt版本：1.3.7

sbt脚本版本：1.3.7

** build.sbt更改

val flinkVersion = "1.9.1"

val flinkDependencies = Seq(
  "org.apache.flink" %% "flink-scala" % flinkVersion % "provided",
  "org.apache.flink" %% "flink-streaming-scala" % flinkVersion % "provided")

**编译错误

sbt:readCsvfile> compile
[info] Updating 
[info] Resolved  dependencies
[warn] 
[warn]  Note: Unresolved dependencies path:
[error] stack trace is suppressed; run last update for the full output
[error] (update) sbt.librarymanagement.ResolveException: Error downloading org.apache.flink:flink-streaming-scala_2.13:1.9.1
[error]   Not found
[error]   Not found
[error]   not found: /home/osboxes/.ivy2/local/org.apache.flink/flink-streaming-scala_2.13/1.9.1/ivys/ivy.xml
[error]   not found: https://repo1.maven.org/maven2/org/apache/flink/flink-streaming-scala_2.13/1.9.1/flink-streaming-scala_2.13-1.9.1.pom
[error] Error downloading org.apache.flink:flink-scala_2.13:1.9.1
[error]   Not found
[error]   Not found
[error]   not found: /home/osboxes/.ivy2/local/org.apache.flink/flink-scala_2.13/1.9.1/ivys/ivy.xml
[error]   not found: https://repo1.maven.org/maven2/org/apache/flink/flink-scala_2.13/1.9.1/flink-scala_2.13-1.9.1.pom
[error] Total time: 4 s, completed Jan 30, 2020 3:59:12 PM
sbt:readCsvfile>

答案

总结评论，因为也许有点想知道您应该怎么做

通常，如果出现“未解决的依赖项”错误，请访问mvnrepository.com，搜索您的工件：

https://mvnrepository.com/artifact/org.apache.flink/flink-scala

这将告诉您（第二列）它支持哪些Scala版本。在这种情况下，该库可用于2.11.x和2.12.x。

因此，您必须在build.sbt中使用与在构建中兼容的Scala版本。

ThisBuild / scalaVersion := "2.12.10"