Gradle"条目. classpath是重复的，但没有设置重复处理策略"

Question

我正在尝试构建gradle项目，但当我尝试$gradle build时，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

在执行了getchilditem-Path./-Filter.classpath-Recurse-Force之后，我得出结论，我的项目中甚至没有一个名为.classpath的文件。我该怎么办？

Answer 1

我在与kotlin和gradle 7合作时也遇到了同样的问题。解决将以下代码添加到build.gradle.kts中的问题。

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

Answer 2

如果您使用Kotlin DSL和Gradle 7.0，可能是由于KT-46165的错误，应该在版本1.5.0中修复。

Answer 3

类似于@korn回答，我用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))
    }
}