构建maven应用程序（2.0.4）。我在POM.xml（eclipse）中遇到了以下构建错误：
Execution default-resources of goal org.apache.maven.plugins:maven-resources-plugin:2.6:resources failed: A required class was missing while executing org.apache.maven.plugins:maven-resources-plugin:2.6:resources: org/apache/maven/shared/filtering/MavenFilteringException
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realm = plugin>org.apache.maven.plugins:maven-resources-plugin:2.6
strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
urls[0] = file:/C:/Users/NM28088/.m2/repository/org/apache/maven/plugins/maven-resources-plugin/2.6/maven-resources-plugin-2.6.jar
urls[1] = file:/C:/Users/NM28088/.m2/repository/org/codehaus/plexus/plexus-utils/1.4.1/plexus-utils-1.4.1.jar
urls[2] = file:/C:/Users/NM28088/.m2/repository/junit/junit/3.8.1/junit-3.8.1.jar
Number of foreign imports: 1
import: Entry[import from realm ClassRealm[maven.api, parent: null]]
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(org.apache.maven.plugins:maven-resources-plugin:2.6:resources:default-resources:process-resources)
可能是什么问题？