maven编译开源项目报enforce错解决

时间：2021-11-29 09:05:57

刚下载一个开源项目源码，用maven编译发现报错：

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-enforcer-plugin:1.4.:enforce (enforce-versions) on project spark-parent_2.: Some Enforcer rules

 have failed. Look above for specific messages explaining why the rule failed. -> [Help ]

[ERROR]

[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.

[ERROR] Re-run Maven using the -X switch to enable full debug logging.

[ERROR]

[ERROR] For more information about the errors and possible solutions, please read the following articles:

[ERROR] [Help ] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

根据报错提示信息得出是enforce插件检测规则失败，并且这里提供了一个官方解决连接，进入看看MojoExecutionException解释：

maven编译开源项目报enforce错解决

说明这个不是maven本身报错，而是它的插件报错了，并且告诉我们要去看一下插件的文档，提供了maven插件文档的链接，进入plugin index找到enforce插件，先看看这个插件是干什么的：

maven编译开源项目报enforce错解决

maven编译开源项目报enforce错解决

这里的对enforcer的解释是，这是做环境约束检查用，到pom.xml中找到对应的enforce插件：

<plugin>

  <groupId>org.apache.maven.plugins</groupId>

  <artifactId>maven-enforcer-plugin</artifactId>

  <version>1.4.</version>

  <executions>

    <execution>

      <id>enforce-versions</id>

      <goals>

        <goal>enforce</goal>

      </goals>

      <configuration>

        <rules>

          <requireMavenVersion>

            <version>${maven.version}</version>

          </requireMavenVersion>

          <requireJavaVersion>

            <version>${java.version}</version>

          </requireJavaVersion>

          <bannedDependencies>

            <excludes>

              <!--

                Akka depends on io.netty:netty, which puts classes under the org.jboss.netty

                package. This conflicts with the classes in org.jboss.netty:netty

                artifact, so we have to ban that artifact here. In Netty .x, the classes

                are under the io.netty package, so it's fine for us to depend on both

                io.netty:netty and io.netty:netty-all.

              -->

              <exclude>org.jboss.netty</exclude>

              <exclude>org.codehaus.groovy</exclude>

            </excludes>

            <searchTransitive>true</searchTransitive>

          </bannedDependencies>

        </rules>

      </configuration>

    </execution>

  </executions>

</plugin>

这里对java.version和maven.version做了约束，把配置改成本地对应的版本号即可。

参考：

https://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

http://maven.apache.org/plugins/

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