SBT项目刷新失败[IntelliJ,Scala,SBT]

Question

每当我尝试在IntelliJ中启用自动导入时,它总是给我这个错误:

SBT 'Example' project refresh failed

Error while importing SBT project:
...
[warn] ==== public: tried
[warn]   https://repo1.maven.org/maven2/org/scalatest/scalatest_2.12/2.2.6/scalatest_2.12-2.2.6.pom
[info] Resolving org.scala-lang#scala-compiler;2.12.0 ...
[info] Resolving org.scala-lang#scala-reflect;2.12.0 ...
[info] Resolving org.scala-lang.modules#scala-xml_2.12;1.0.5 ...
[info] Resolving jline#jline;2.14.1 ...
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
[warn]  ::          UNRESOLVED DEPENDENCIES         ::
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
[warn]  :: org.scalatest#scalatest_2.12;2.2.6: not found
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
[warn] 
[warn]  Note: Unresolved dependencies path:
[warn]      org.scalatest:scalatest_2.12:2.2.6 (/Users/sarahbaka/Desktop/Scala/Example/build.sbt#L7-8)
[warn]        +- default:example_2.12:1.0
[trace] Stack trace suppressed: run 'last *:update' for the full output.
[trace] Stack trace suppressed: run 'last *:ssExtractDependencies' for the full output.
[error] (*:update) sbt.ResolveException: unresolved dependency: org.scalatest#scalatest_2.12;2.2.6: not found
[error] (*:ssExtractDependencies) sbt.ResolveException: unresolved dependency: org.scalatest#scalatest_2.12;2.2.6: not found
[error] Total time: 4 s, completed 08-Nov-2016 22:24:34</pre><br/>

我已经安装了JetBrains Scala插件,然后打开了一个带有SBT构建的目录并重置/重新启动了我的缓存(文件 - >无效缓存/重启).但它仍然不起作用!有谁知道为什么？

Answer 1

您的最糟糕的依赖项配置错误.您想要为Scala 2.12发布的scalatest 2.6版.没有这样的组合,因此您的构建失败.如果您看看Scala 2.12的scalatest版本,请点击链接.如您所见,它只有3.0.0版本.因此,您有3个选项(build.sbt您需要在文件中进行更改):

1. 将您的最新版本更新为3.0.0: libraryDependencies += "org.scalatest" %% "scalatest" % "3.0.0" % Test
2. 将Scala版本降级到2.11: scalaVersion := "2.11.8"
3. 以上都是

我说现在使用Scala 2.12还为时尚早,因为它仅在几天前发布,而且尚未发布所有依赖项.Scala主要版本(2.11 vs 2.12是Scala的主要版本升级)不是二进制兼容的,因此您不能在使用另一个的项目中使用使用一个Scala版本编译的库.

与此同时,我会使用最新的3.0.0版本,因为它是稳定版本.总而言之,即使选项1和2将以不同的方式解决这个特定问题,我现在也会选择第3选项.