Scala sbt 库依赖项 - 找不到模块错误

Question

我正在尝试将依赖项添加到 json4，但我收到模块未找到错误。我正在使用 scala-version 2.12.4 和 sbt-version 1.1.1。我的其他依赖添加似乎以正常方式添加。

这是我在 build.sbt 中的代码：

scalaVersion := "2.12.4"

libraryDependencies += "io.spray" %% "spray-json" % "1.3.4"

libraryDependencies += "org.scalatest" %% "scalatest" % "3.0.4" % Test

libraryDependencies += "org.scalacheck" %% "scalacheck" % "1.13.4" % Test

libraryDependencies += "org.json4s" %% "json4s-native" % "3.3.0"

这是我收到的错误消息：

[warn]  module not found: org.json4s#json4s-native_2.12;3.3.0
[warn] ==== local: tried
[warn]   /Users/*****/.ivy2/local/org.json4s/json4s-native_2.12/3.3.0/ivys/ivy.xml
[warn] ==== public: tried
[warn]   https://repo1.maven.org/maven2/org/json4s/json4s-native_2.12/3.3.0/    json4s-native_2.12-3.3.0.pom
[warn] ==== local-preloaded-ivy: tried
[warn]   /Users/*****/.sbt/preloaded/org.json4s/json4s-native_2.12/3.3.0/ivys/ivy.xml
[warn] ==== local-preloaded: tried
[warn]   file:////Users/*****/.sbt/preloaded/org/json4s/json4s-native_2.12/3.3.0/    json4s-native_2.12-3.3.0.pom
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
[warn]  ::          UNRESOLVED DEPENDENCIES         ::
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
[warn]  :: org.json4s#json4s-native_2.12;3.3.0: not found
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::

帮助感谢，谢谢！

Answer 1

您需要使用此库的更新版本。

试试这个： libraryDependencies += "org.json4s" %% "json4s-native" % "3.6.0-M3"

或一些较早的版本，但不是3.3.0

版本链接： http://search.maven.org/#search%7Cga%7C2%7Cg%3A%22org.json4s%22

编辑：此问题与兼容性有关。您使用新版本的 Scala 和 sbt。此库的先前版本与此 Scala 版本或 sbt 版本不兼容。