reactor - 由于缺乏 gradle 依赖关系，无法构建 https://github.com/reactor/reactor-samples

Question

我使用 Gradle 插件在 eclipse 中克隆并导入了 gradle 项目。

但我收到所有反应堆类的导入错误。找不到项目中提到的BUILD.SNAPSHOTS。

./gradlew compileJava :compileJava

FAILURE：构建失败并出现异常。

• 出了什么问题：无法解析配置 ':compile' 的所有依赖项。

  找不到 io.projectreactor:reactor-stream:2.5.0.BUILD-SNAPSHOT。在以下位置搜索：文件：/Users/debasish/.m2/repository/io/projectreactor/reactor-stream/2.5.0.BUILD-SNAPSHOT/maven-metadata.xml 文件：/Users/debasish/.m2/repository /io/projectreactor/reactor-stream/2.5.0.BUILD-SNAPSHOT/reactor-stream-2.5.0.BUILD-SNAPSHOT.pom 文件：/Users/debasish/.m2/repository/io/projectreactor/reactor-stream/ 2.5.0.BUILD-SNAPSHOT/reactor-stream-2.5.0.BUILD-SNAPSHOT.jar https://repo1.maven.org/maven2/io/projectreactor/reactor-stream/2.5.0.BUILD-SNAPSHOT/maven -metadata.xml https://repo1.maven.org/maven2/io/projectreactor/reactor-stream/2.5.0.BUILD-SNAPSHOT/reactor-stream-2.5.0.BUILD-SNAPSHOT.pom https://repo1.maven.org/maven2/io/projectreactor/reactor-stream/2.5.0.BUILD-SNAPSHOT/reactor-stream-2.5.0.BUILD-SNAPSHOT.jar http://repo.spring.io /release/io/projectreactor/reactor-stream/2.5.0.BUILD-SNAPSHOT/maven-metadata.xml http://repo.spring.io/release/io/projectreactor/reactor-stream/2.5.0.BUILD- SNAPSHOT/reactor-stream-2.5.0.BUILD-SNAPSHOT.pom http://repo.spring.io/release/io/projectreactor/reactor-stream/2.5.0.BUILD-SNAPSHOT/reactor-stream-2.5.0 .BUILD-SNAPSHOT.jar https://jcenter.bintray.com/io/projectreactor/reactor-stream/2.5.0.BUILD-SNAPSHOT/maven-metadata.xml https://jcenter.bintray.com/io/projectreactor /reactor-stream/2.5.0.BUILD-SNAPSHOT/reactor-stream-2.5.0.BUILD-SNAPSHOT.pom https://jcenter.bintray.com/io/projectreactor/reactor-stream/2.5.0.BUILD-SNAPSHOT/reactor-stream-2.5.0.BUILD-SNAPSHOT.jar 要求：io.projectreactor.springone:reactor-样本：0.2.0 找不到 io.projectreactor:reactor-bus:2.5.0.BUILD-SNAPSHOT。在以下位置搜索：文件：/Users/debasish/.m2/repository/io/projectreactor/reactor-bus/2.5.0.BUILD-SNAPSHOT/maven-metadata.xml 文件：/Users/debasish/.m2/repository /io/projectreactor/reactor-bus/2.5.0.BUILD-SNAPSHOT/reactor-bus-2.5.0.BUILD-SNAPSHOT.pom 文件：/Users/debasish/.m2/repository/io/projectreactor/reactor-bus/ 2.5.0.BUILD-SNAPSHOT/reactor-bus-2.5.0.BUILD-SNAPSHOT.jar https://repo1.maven.org/maven2/io/projectreactor/reactor-bus/2.5.0.BUILD-SNAPSHOT/maven -元数据.xml https://repo1.maven.org/maven2/io/projectreactor/reactor-bus/2.5.0.BUILD-SNAPSHOT/reactor-bus-2.5.0.BUILD-SNAPSHOT.pom https://repo1.maven.org /maven2/io/projectreactor/reactor-bus/2.5.0.BUILD-SNAPSHOT/reactor-bus-2.5.0.BUILD-SNAPSHOT.jar http://repo.spring.io/release/io/projectreactor/reactor- bus/2.5.0.BUILD-SNAPSHOT/maven-metadata.xml http://repo.spring.io/release/io/projectreactor/reactor-bus/2.5.0.BUILD-SNAPSHOT/reactor-bus-2.5.0 .BUILD-SNAPSHOT.pom http://repo.spring.io/release/io/projectreactor/reactor-bus/2.5.0.BUILD-SNAPSHOT/reactor-bus-2.5.0.BUILD-SNAPSHOT.jar https:// /jcenter.bintray.com/io/projectreactor/reactor-bus/2.5.0.BUILD-SNAPSHOT/maven-metadata.xml https://jcenter.bintray.com/io/projectreactor/reactor-bus/2.5.0.BUILD-SNAPSHOT/reactor-bus-2.5.0.BUILD-SNAPSHOT.pom https://jcenter.bintray.com/io /projectreactor/reactor-bus/2.5.0.BUILD-SNAPSHOT/reactor-bus-2.5.0.BUILD-SNAPSHOT.jar 要求：io.projectreactor.springone:reactor-samples:0.2.0 找不到 io.projectreactor :reactor-groovy:2.5.0.BUILD-SNAPSHOT。在以下位置搜索：文件：/Users/debasish/.m2/repository/io/projectreactor/reactor-groovy/2.5.0.BUILD-SNAPSHOT/maven-metadata.xml 文件：/Users/debasish/.m2/repository /io/projectreactor/reactor-groovy/2.5.0.BUILD-SNAPSHOT/reactor-groovy-2.5.0.BUILD-SNAPSHOT.pom 文件：/Users/debasish/.m2/repository/io/projectreactor/reactor-groovy/ 2.5.0.BUILD-SNAPSHOT/reactor-groovy-2.5.0.BUILD-SNAPSHOT.jar https://repo1.maven.org/maven2/io/projectreactor/reactor-groovy/2.5.0.BUILD-SNAPSHOT/maven-metadata.xml https://repo1.maven.org/maven2/io/projectreactor/reactor -groovy/2.5.0.BUILD-SNAPSHOT/reactor-groovy-2.5.0.BUILD-SNAPSHOT.pom https://repo1.maven.org/maven2/io/projectreactor/reactor-groovy/2.5.0.BUILD- SNAPSHOT/reactor-groovy-2.5.0.BUILD-SNAPSHOT.jar http://repo.spring.io/release/io/projectreactor/reactor-groovy/2.5.0.BUILD-SNAPSHOT/maven-metadata.xml http： //repo.spring.io/release/io/projectreactor/reactor-groovy/2.5.0.BUILD-SNAPSHOT/reactor-groovy-2.5.0.BUILD-SNAPSHOT.pom http://repo.spring.io/release /io/projectreactor/reactor-groovy/2.5.0.BUILD-SNAPSHOT/reactor-groovy-2.5.0.BUILD-SNAPSHOT.jar https://jcenter.bintray.com/io/projectreactor/reactor-groovy/2.5.0.BUILD-SNAPSHOT/maven-metadata.xml https://jcenter.bintray.com/io/projectreactor/reactor-groovy/2.5 .0.BUILD-SNAPSHOT/reactor-groovy-2.5.0.BUILD-SNAPSHOT.pom https://jcenter.bintray.com/io/projectreactor/reactor-groovy/2.5.0.BUILD-SNAPSHOT/reactor-groovy- 2.5.0.BUILD-SNAPSHOT.jar 要求：io.projectreactor.springone:reactor-samples:0.2.0 找不到 io.projectreactor.spring:reactor-spring-context:2.5.0.BUILD-SNAPSHOT。在以下位置搜索：文件：/Users/debasish/.m2/repository/io/projectreactor/spring/reactor-spring-context/2.5.0.BUILD-SNAPSHOT/maven-metadata.xml 文件：/Users/debasish/ .m2/repository/io/projectreactor/spring/reactor-spring-context/2.5.0.BUILD-SNAPSHOT/reactor-spring-context-2.5.0.BUILD-SNAPSHOT.pom 文件：/Users/debasish/.m2/存储库/io/projectreactor/spring/reactor-spring-context/2.5.0.BUILD-SNAPSHOT/reactor-spring-context-2.5.0.BUILD-SNAPSHOT.jar https://repo1.maven.org/maven2/io /projectreactor/spring/reactor-spring-context/2.5.0.BUILD-SNAPSHOT/maven-metadata.xml https://repo1.maven.org/maven2/io/projectreactor/spring/reactor-spring-context/2.5.0.BUILD-SNAPSHOT/reactor-spring-context-2.5.0.BUILD-SNAPSHOT.pom https:// /repo1.maven.org/maven2/io/projectreactor/spring/reactor-spring-context/2.5.0.BUILD-SNAPSHOT/reactor-spring-context-2.5.0.BUILD-SNAPSHOT.jar http://repo。 spring.io/release/io/projectreactor/spring/reactor-spring-context/2.5.0.BUILD-SNAPSHOT/maven-metadata.xml http://repo.spring.io/release/io/projectreactor/spring/reactor -spring-context/2.5.0.BUILD-SNAPSHOT/reactor-spring-context-2.5.0.BUILD-SNAPSHOT.pom http://repo.spring.io/release/io/projectreactor/spring/reactor-spring-上下文/2.5.0.BUILD-SNAPSHOT/reactor-spring-context-2.5.0.BUILD-SNAPSHOT.jar https://jcenter.bintray.com/io/projectreactor/spring/reactor-spring-context/2.5.0.BUILD-SNAPSHOT/maven-metadata.xml https://jcenter.bintray.com/io/projectreactor/spring /reactor-spring-context/2.5.0.BUILD-SNAPSHOT/reactor-spring-context-2.5.0.BUILD-SNAPSHOT.pom https://jcenter.bintray.com/io/projectreactor/spring/reactor-spring- context/2.5.0.BUILD-SNAPSHOT/reactor-spring-context-2.5.0.BUILD-SNAPSHOT.jar 要求：io.projectreactor.springone:reactor-samples:0.2.0

• 尝试：使用 --stacktrace 选项运行以获取堆栈跟踪。使用 --info 或 --debug 选项运行以获得更多日志输出。

构建失败

Answer 1

或者，我们只是碰到了 2.5.0.BUILD-SNAPSHOT 并且扩展 repo 落后了，它至少应该很快在 repo.spring.io 上发布，并且无论如何都会在本月发布 M1。很抱歉，我们上周刚刚开始进行此更改，给您带来的不便。

Answer 2

当前示例需要 2.5 BUILD SNAPSHOT 版本的 recator。由于此快照版本在 maven Central 上不可用，因此您必须手动构建它，以便在构建示例之前它存在于您的 .m2/repo 中。

Answer 3

我想出了一个更简单的解决方案 - 遗憾的是样本本身没有配置此条目。理想情况下，它应该是因为样本引用了快照。

只需添加一个存储库条目以指向弹簧快照，然后您就会找到构建快照:)

repositories {
  mavenLocal()
  mavenCentral()
  maven { url 'http://repo.spring.io/libs-snapshot' }
  jcenter()
}