未能执行目标 org.apache.maven.plugins:maven-resources-plugin:2.5:resources

Question

我正在使用安装了 Maven 插件的 Maven 3.0.5 和 Spring Tool Source 3.2。 当我尝试执行“运行方式---> Maven 安装”时，出现以下错误：

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-resources-plugin:2.5:resources (default-resources) on project mavencxf: Execution default-resources of goal org.apache.maven.plugins:maven-resources-plugin:2.5:resources failed: A required class was missing while executing org.apache.maven.plugins:maven-resources-plugin:2.5:resources: org/codehaus/plexus/util/Scanner
[ERROR] -----------------------------------------------------
[ERROR] realm =    plugin>org.apache.maven.plugins:maven-resources-plugin:2.5
[ERROR] strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
[ERROR] urls[0] = file:/C:/Users/Mindbowser-MB/.m2/repository/org/apache/maven/plugins/maven-resources-plugin/2.5/maven-resources-plugin-2.5.jar
[ERROR] urls[1] = file:/C:/Users/Mindbowser-MB/.m2/repository/org/apache/maven/reporting/maven-reporting-api/2.0.6/maven-reporting-api-2.0.6.jar
[ERROR] urls[2] = file:/C:/Users/Mindbowser-MB/.m2/repository/org/apache/maven/doxia/doxia-sink-api/1.0-alpha-7/doxia-sink-api-1.0-alpha-7.jar
[ERROR] urls[3] = file:/C:/Users/Mindbowser-MB/.m2/repository/commons-cli/commons-cli/1.0/commons-cli-1.0.jar
[ERROR] urls[4] = file:/C:/Users/Mindbowser-MB/.m2/repository/org/codehaus/plexus/plexus-interactivity-api/1.0-alpha-4/plexus-interactivity-api-1.0-alpha-4.jar
[ERROR] urls[5] = file:/C:/Users/Mindbowser-MB/.m2/repository/junit/junit/3.8.1/junit-3.8.1.jar
[ERROR] urls[6] = file:/C:/Users/Mindbowser-MB/.m2/repository/org/codehaus/plexus/plexus-utils/2.0.5/plexus-utils-2.0.5.jar
[ERROR] urls[7] = file:/C:/Users/Mindbowser-MB/.m2/repository/org/apache/maven/shared/maven-filtering/1.0/maven-filtering-1.0.jar
[ERROR] urls[8] = file:/C:/Users/Mindbowser-MB/.m2/repository/org/sonatype/plexus/plexus-build-api/0.0.4/plexus-build-api-0.0.4.jar
[ERROR] urls[9] = file:/C:/Users/Mindbowser-MB/.m2/repository/org/codehaus/plexus/plexus-interpolation/1.13/plexus-interpolation-1.13.jar
[ERROR] Number of foreign imports: 1
[ERROR] import: Entry[import  from realm ClassRealm[maven.api, parent: null]]
[ERROR] 
[ERROR] -----------------------------------------------------: org.codehaus.plexus.util.Scanner
[ERROR] -> [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] 

Answer 1

A required class was missing while executing org.apache.maven.plugins:maven-resources-plugin:2.5:resources: org/codehaus/plexus/util/Scanner

资源插件缺少依赖项； 但是它应该会自动下载它，...您处于离线模式吗？ 如果您上线一次并执行它，它应该会自动下载缺少的依赖项。

Answer 2

我的问题在于 POM.XML 文件中定义的存储库。 我删除了它们，以便它使用默认存储库并解决了我的问题。

Answer 3

当存储库出现问题时，这种情况发生在我身上一次，然后即使我再次运行 maven，它仍然失败。

解决方案：

1. 删除maven repo ~/.m2/repository
2. 然后重新构建

这个对我有用。