Question

尝试install maven项目时出现此错误：

[错误]无法执行目标 org.apache.maven.plugins：Maven的依赖关系的插件：2.10：分析只（仅限分析）关于项目功能测试：依赖性发现的问题 - ＆gt; [帮助1]

在verify阶段的集成测试之后。由于日志提供的其他信息不多，我几乎无法猜到要查看的位置。我尝试使用-X参数运行maven以深入了解，但这是唯一出现的错误。在错误出现之前我在详细日志中看到的最后一件事是下面的警告（我怀疑与错误有关）：

[WARNING] Used undeclared dependencies found:
[WARNING]    javax.activation:activation:jar:1.1:test
[WARNING] Unused declared dependencies found:
[WARNING]    org.slf4j:slf4j-log4j12:jar:1.7.6:compile
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 27.090 s
[INFO] Finished at: 2017-06-28T10:58:54+08:00
[INFO] Final Memory: 60M/1042M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-dependency-plugin:2.10:analyze-only (analyze-only) on project functional-tests: Dependency problems found -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-dependency-plugin:2.10:analyze-only (analyze-only) on project functional-tests: Dependency problems found
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-dependency-plugin:2.10:analyze-only (analyze-only) on project functional-tests: Dependency problems found
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:216)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
    at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
    at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
    at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
    at org.apache.maven.cli.MavenCli.execute(MavenCli.java:862)
    at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:286)
    at org.apache.maven.cli.MavenCli.main(MavenCli.java:197)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: org.apache.maven.plugin.MojoExecutionException: Dependency problems found
    at org.apache.maven.plugin.dependency.analyze.AbstractAnalyzeMojo.execute(AbstractAnalyzeMojo.java:260)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
    ... 20 more
[ERROR] 
[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

可能导致此问题的原因是什么？

更新：我已经解决了导致上述警告的问题，它确实有助于消除错误。现在我只想知道为什么使用未声明的依赖项或声明未使用的依赖项会导致整个构建失败？

UPDATE2 ：将slf4j范围更改为runtime也解决了问题。

Answer 1

显然，使用未声明的依赖项警告是我问题的罪魁祸首。将依赖项明确添加到pom文件后，问题就解决了。

Answer 2

此错误的原因是：

[WARNING] Used undeclared dependencies found:
[WARNING]    javax.activation:activation:jar:1.1:test
[WARNING] Unused declared dependencies found:
[WARNING]    org.slf4j:slf4j-log4j12:jar:1.7.6:compile

您应该删除org.slf4j:slf4j-log4j12依赖性并添加javax.activation:activation依赖性。

无法执行目标org.apache.maven.plugins：maven-dependency-plugin：2.10

2 个答案: