即使是一个简单的 Hello 程序,如果我在 build.sbt 文件中添加 play-json 作为库依赖项,当我在 sbt 中执行“assembly”命令时,我总是会遇到合并错误(sbt-assembly 插件).
[error] stack trace is suppressed; run last assembly for the full output
[error] (assembly) deduplicate: different file contents found in the following:
[error] /home/heitor/.cache/coursier/v1/https/repo1.maven.org/maven2/com/fasterxml/jackson/core/jackson-annotations/2.10.1/jackson-annotations-2.10.1.jar:module-info.class
[error] /home/heitor/.cache/coursier/v1/https/repo1.maven.org/maven2/com/fasterxml/jackson/core/jackson-core/2.10.1/jackson-core-2.10.1.jar:module-info.class
[error] /home/heitor/.cache/coursier/v1/https/repo1.maven.org/maven2/com/fasterxml/jackson/core/jackson-databind/2.10.1/jackson-databind-2.10.1.jar:module-info.class
[error] /home/heitor/.cache/coursier/v1/https/repo1.maven.org/maven2/com/fasterxml/jackson/datatype/jackson-datatype-jdk8/2.10.1/jackson-datatype-jdk8-2.10.1.jar:module-info.class
[error] /home/heitor/.cache/coursier/v1/https/repo1.maven.org/maven2/com/fasterxml/jackson/datatype/jackson-datatype-jsr310/2.10.1/jackson-datatype-jsr310-2.10.1.jar:module-info.class
MergeApp.scala
object MergeApp extends App {
println("Hello")
}
构建.sbt
name := "MergeBug"
version := "0.1"
scalaVersion := "2.13.1"
val playJsonVersion = "2.8.1"
libraryDependencies ++= Seq("com.typesafe.play" %% "play-json" % playJsonVersion)
项目/build.properties
sbt.version = 1.3.8
项目/plugins.sbt
addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "0.14.10")
最佳答案
您需要定义自定义合并策略。参见 https://github.com/sbt/sbt-assembly#merge-strategy
由于 module-info.class
文件仅对 Java 9+ 模块有用,您可以安全地丢弃它们:
assemblyMergeStrategy in assembly := {
case "module-info.class" => MergeStrategy.discard
case x =>
val oldStrategy = (assemblyMergeStrategy in assembly).value
oldStrategy(x)
}
https://stackoverflow.com/questions/60114651/
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