为什么在元素‘{http:maven.apache.orgPOM4.0.0:build}’处发现了无效内容？

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配置了两个build标签，发现内容无效，从元素{http://maven.apache.org/POM/4.0.0:build}开始。以下错误信息：无效内容，从元素{http://maven.apache.org/POM/4.0.0:build}开始。

配置了两个build标签Invalidcontentwasfoundstartingwithelement{maven.apache.org/POM/4.0.0":build}. One of {"maven.apache.org/POM/4.0.0":parent, "maven.apache.org/POM/4.0.0":description, "maven.apache.org/POM/4.0.0":url, "maven.apache.org/POM/4.0.0":prerequisites, "maven.apache.org/POM/4.0.0":issueManagement, "maven.apache.org/POM/4.0.0":ciManagement, "maven.apache.org/POM/4.0.0":inceptionYear, "maven.apache.org/POM/4.0.0":mailingLists, "maven.apache.org/POM/4.0.0":developers, "maven.apache.org/POM/4.0.0":contributors, "maven.apache.org/POM/4.0.0":licenses, "maven.apache.org/POM/4.0.0":scm, "maven.apache.org/POM/4.0.0":organization, "maven.apache.org/POM/4.0.0":profiles, "maven.apache.org/POM/4.0.0":modules, "maven.apache.org/POM/4.0.0":repositories, "maven.apache.org/POM/4.0.0":pluginRepositories, "maven.apache.org/POM/4.0.0":reports, "maven.apache.org/POM/4.0.0":reporting, "maven.apache.org/POM/4.0.0":dependencyManagement, "maven.apache.org/POM/4.0.0":distributionManagement} is expected.