Gradle“条目.classpath是重复的，但没有设置重复的处理策略”

Question

我正在尝试构建一个 gradle 项目，但是当我尝试时，$ gradle build我得到以下输出：

Starting a Gradle Daemon (subsequent builds will be faster)
> Task :jar FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':jar'.
> Entry .classpath is a duplicate but no duplicate handling strategy has been set. Please refer to https://docs.gradle.org/7.0/dsl/org.gradle.api.file.CopySpec.html#org.gradle.api.file.CopySpec:duplicatesStrategy for details.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 11s
4 actionable tasks: 2 executed, 2 up-to-date

做完之后Get-ChildItem -Path ./ -Filter .classpath -Recurse -Force我得出结论，.classpath我的项目中甚至没有一个文件名。我该怎么办？

Answer 1

与@korn的答案类似，我使用EXCLUDE策略解决了我的问题；

tasks.withType<Jar>() {

    duplicatesStrategy = DuplicatesStrategy.EXCLUDE

    manifest {
        attributes["Main-Class"] = "MainKt"
    }

    configurations["compileClasspath"].forEach { file: File ->
        from(zipTree(file.absoluteFile))
    }
}

Answer 2

jar {
   duplicatesStrategy(DuplicatesStrategy.EXCLUDE)
}

Answer 3

我在 IntelliJ 中执行一些测试时遇到了同样的问题。对我有帮助的是运行一个简单的gradle clean.

Answer 4

请添加这个

tasks.withType(Copy).all { duplicatesStrategy 'exclude' }

build.gradle然后在文件中解决了它。

Answer 5

我在使用 kotlin 和 gradle 7 构建时遇到了同样的问题。将以下代码添加到您的build.gradle.kts.

tasks.withType<Jar> { duplicatesStrategy = DuplicatesStrategy.INHERIT }

Answer 6

如果你使用 Kotlin DSL 和 Gradle 7.0 可能是由于那个 bug KT-46165 它应该在 1.5.0 版本中修复。