scala 为什么会出现Conflicting cross-version suffixes的错误？
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Why is the error Conflicting cross-version suffixes?
提问by Rodrigo Cifuentes Gómez
I'm getting this error when I try to compile a Scala project in sbt.
当我尝试在 sbt 中编译 Scala 项目时出现此错误。
Modules were resolved with conflicting cross-version suffixes in {file:/home/seven3n/caja/Flujo_de_caja/}flujo_de_caja:
[error] com.typesafe.akka:akka-actor _2.11, _2.10
[error] org.scalaz:scalaz-effect _2.10, _2.11
[error] org.scalaz:scalaz-core _2.10, _2.11
[trace] Stack trace suppressed: run last *:update for the full output.
[error] (*:update) Conflicting cross-version suffixes in: com.typesafe.akka:akka-actor, org.scalaz:scalaz-effect, org.scalaz:scalaz-core
This is my build.sbtfile:
这是我的build.sbt文件：
scalaVersion := "2.11.0"
resolvers ++= Seq(
"Sonatype snapshots repository" at "https://oss.sonatype.org/content/repositories/snapshots/",
"Spray repository" at "http://repo.spray.io/",
"Typesafe repository" at "http://repo.typesafe.com/typesafe/releases/"
)
libraryDependencies ++= {
val akkaVersion = "2.3.2"
val sprayVersion = "1.3.1-20140423"
val sprayJsonVersion = "1.2.6"
val reactiveMongoVersion = "0.11.0-SNAPSHOT"
val scalaTestVersion = "2.1.5"
val specs2Version = "2.3.11"
val foloneVersion = "0.12-SNAPSHOT"
Seq(
"com.typesafe.akka" %% "akka-actor" % akkaVersion,
"com.typesafe.akka" %% "akka-testkit" % akkaVersion,
"io.spray" %% "spray-can" % sprayVersion,
"io.spray" %% "spray-routing" % sprayVersion,
"io.spray" %% "spray-testkit" % sprayVersion,
"io.spray" %% "spray-json" % sprayJsonVersion,
"org.reactivemongo" % "reactivemongo_2.10" % reactiveMongoVersion,
"org.scalatest" %% "scalatest" % scalaTestVersion % "test",
"org.specs2" %% "specs2" % specs2Version % "test",
"info.folone" % "poi-scala_2.10" % foloneVersion
)
}
Any suggestions?
有什么建议？
回答by Ionu? G. Stan
The conflicts appear because:
出现冲突是因为：
- you've specified your Scala version to be 2.11
- you've explicitly specified the Scala version (2.10) for the reactivemongo and poi-scala libraries.
- 您已将 Scala 版本指定为 2.11
- 您已经为reactivemongo 和poi-scala 库明确指定了Scala 版本(2.10)。
The fix is to use the %%operator for those two libraries as well.
解决方法是也使用%%这两个库的运算符。
"org.reactivemongo" %% "reactivemongo" % reactiveMongoVersion,
"info.folone" %% "poi-scala" % foloneVersion
That's the purpose of the %%operator. To append the declared Scala version (2.11 in your case) to the artifact name.
这就是%%运营商的目的。将声明的 Scala 版本（在您的情况下为 2.11）附加到工件名称。
回答by Mayukh
I had the same problem and I simply removed the scalaVersion tag from my sbt file and modified the line
我遇到了同样的问题，我只是从我的 sbt 文件中删除了 scalaVersion 标记并修改了该行
libraryDependencies += "org.apache.spark" %% "spark-core" % "1.6.0"
to
到
libraryDependencies += "org.apache.spark" % "spark-core_2.11" % "1.6.0"
and the problem went away.
问题就解决了。
回答by Prasath Rao
I have tried using %% but it didn't work. I have manually excluded it using
我试过使用 %% 但它没有用。我已经手动排除它使用
("org.reactivemongo" % "reactivemongo" % reactiveMongoVersion)
.exclude("com.typesafe.akka", "akka-actor_2.10")
.exclude("org.scalaz", "scalaz-effect")
.exclude("org.scalaz", "scalaz-core")
回答by Roman Kazanovskyi
To investigate who is caller you can use a plugin but an easier way to look into target/scala-2.*/resolution-cache/reports/.
There is Ivy's resolution report for each configuration.
Look for *-compile.xmland *-test.xmland search for conflicting library.
You can see similar with
要调查谁是来电者，您可以使用插件但更简单的方法是查看target/scala-2.*/resolution-cache/reports/. 每个配置都有 Ivy 的解析报告。寻找*-compile.xml并*-test.xml和搜索冲突的库。你可以看到类似的
<module organisation="com.github.nscala-time" name="nscala-time_2.11">
...
<caller organisation="com.tumblr" name="colossus-metrics_2.11" conf="compile, runtime" rev="1.2.0" rev-constraint-default="1.2.0" rev-constraint-dynamic="1.2.0" callerrev="0.7.2-RC1"/>
...
</module>
This should tell you the caller of the module.
这应该告诉你模块的调用者。
