从命令行运行 mvn install 时出现 Jacoco 错误

Question

我正在尝试通过键入 mvn install / mvn compile 在本地安装 jacoco 项目。正如您在下面的屏幕截图中看到的那样，我收到错误构建失败。我怀疑maven或java版本可能是错误。

[INFO] --- maven-enforcer-plugin:3.0.0-M2:enforce (enforce) @ org.jacoco.build --- [警告] 规则 1：org.apache.maven.plugins.enforcer.RequireMavenVersion 失败并显示消息： 检测到的 Maven 版本：3.8.2 不在允许的范围内 [3.3.9,3.8.2),(3.8.2,)。 [信息] --------------------------------------------- --------------------------

[INFO] JaCoCo ..............................................FAILURE [  0.251 s]
[INFO] JaCoCo :: Core ..................................... SKIPPED
[INFO] JaCoCo :: Report ................................... SKIPPED
[INFO] JaCoCo :: Agent RT ................................. SKIPPED
[INFO] JaCoCo :: Agent .................................... SKIPPED
[INFO] JaCoCo :: Ant ...................................... SKIPPED
[INFO] JaCoCo :: Command Line Interface ................... SKIPPED
[INFO] JaCoCo :: Examples ................................. SKIPPED
[INFO] JaCoCo :: Maven Plugin ............................. SKIPPED
[INFO] JaCoCo :: Tests .................................... SKIPPED
[INFO] JaCoCo :: Test :: Core ............................. SKIPPED
[INFO] JaCoCo :: Test :: Core :: Validation ............... SKIPPED
[INFO] JaCoCo :: Test :: Core :: Validation Java 5 ........ SKIPPED
[INFO] JaCoCo :: Test :: Core :: Validation Kotlin ........ SKIPPED
[INFO] JaCoCo :: Test :: Core :: Validation Java 7 ........ SKIPPED
[INFO] JaCoCo :: Test :: Core :: Validation Java 8 ........ SKIPPED
[INFO] JaCoCo :: Test :: Core :: Validation Groovy ........ SKIPPED
[INFO] JaCoCo :: Test :: Core :: Validation Scala ......... SKIPPED
[INFO] JaCoCo :: Test :: Report ........................... SKIPPED
[INFO] JaCoCo :: Test :: Agent RT ......................... SKIPPED
[INFO] JaCoCo :: Test :: Agent ............................ SKIPPED
[INFO] JaCoCo :: Test :: Ant .............................. SKIPPED
[INFO] JaCoCo :: Test :: Command Line Interface ........... SKIPPED
[INFO] JaCoCo :: Test :: Examples ......................... SKIPPED
[INFO] JaCoCo :: Test :: Maven Plugin ..................... SKIPPED
[INFO] JaCoCo :: Documentation ............................ SKIPPED
[INFO] JaCoCo :: Distribution ............................. SKIPPED
[INFO] root ............................................... SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  0.423 s
[INFO] Finished at: 2021-11-08T18:38:42+02:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-enforcer-plugin:3.0.0-M2:enforce (enforce) on project org.jacoco.build: Some Enforcer rules have failed. Look above for specific messages explaining why the rule failed. -> [Help 1]
[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 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

Answer 1

错误消息指出：

未能执行目标 org.apache.maven.plugins:maven-enforcer-plugin:3.0.0-M2:enforce (enforce) on project org.jacoco.build：一些 Enforcer 规则有 失败的。在上面查看解释规则原因的特定消息 失败了。

提供的输出的顶部包括以下内容：

[警告] 规则 1： org.apache.maven.plugins.enforcer.RequireMavenVersion 失败 消息：检测到的 Maven 版本：3.8.2 不在允许的范围内 [3.3.9,3.8.2),(3.8.2,)

因此，您的 Maven 版本3.8.2 似乎不在[3.3.9,3.8.2) 的允许范围内。请注意，符号 [3.3.9,3.8.2) 表示允许的范围从 3.3.9 开始并在 之前 3.8.2 结束，因为 [ 表示包含该值，而 ) 表示结束值是排除在外。

我假设您可以通过将 JaCoCo 更新到与 Maven 3.8.2 兼容的版本或使用早期版本的 Maven 来解决此问题。后者可能会引入其他兼容性问题，因此您可能应该先探索前者。