Maven分模块开发执行指令失败的问题

Maven分模块开发执行指令失败的问题

Maven工程分模块开发完成 父工程配置了 tomcat7插件，运行 run命令

执行run指令时失败，报错信息如下：

D:\java\JDK8\bin\java.exe "-Dmaven.multiModuleProjectDirectory=D:\Idea2020\IntelliJ IDEA 2020.1\MavenProject_parent" -Dmaven.home=D:\apache-maven-3.6.3

-Dclassworlds.conf=D:\apache-maven-3.6.3\bin\m2.conf "

-Dmaven.ext.class.path=D:\Idea2020\IntelliJ IDEA 2020.1\plugins\maven\lib\mavorEIqedejuen-event-listener.jar" "

-javaagent:D:\Idea2020\IntelliJ IDEA 2020.1\lib\idea_rt.jar=50388:D:\Idea2020\IntelliJ IDEA 2020.1\bin"

-Dfile.encoding=UTF-8 -classpath D:\apache-maven-3.6.3\boot\plexus

-classworlds-2.6.0.jar;D:\apache-maven-3.6.3\boot\plexus

-classworlds.license org.codehaus.classworlds.Launcher

-Didea.version2020.1 -s D:\apache-maven-3.6.3\conf\settings.xml

-Dmaven.repo.local=D:\apache-maven-3.6.3\my_maven_local_repository install

[INFO] Scanning for projects...

[ERROR] [ERROR] Some problems were encountered while processing the POMs:

[ERROR] 'modules.module[3]' specifies duplicate child module maven_dao @ line 29, column 17

 @

[ERROR] The build could not rehttp://ad 1 project -> [Help 1]

[ERROR]  

[ERROR]   The project com.idea.maven:MavenProject_parent:1.0-SNAPSHOT (D:\Idea2020\IntelliJ IDEA 2020.1\MavenProject_parent\pom.xml) has 1 error

[ERROR]     'modules.module[3]' specifies duplicate child module maven_dao @ line 29, column 17

[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 thttp://he errors and possible solutions, please read the following articles:

[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/ProjectBuildingException

分析报错原因：

[ERROR] [ERROR] Some problems were encountered while processing the POMs:

[ERROR]orEIqedeju 'modules.module[3]' specifies duplicate child module maven_dao @ line 29, column 17

原因： 在父工程的Pom.xml 文件中，指定了重复了子模块 maven_dao

maven_dao

maven_service

maven_web

maven_dao

pom

解决： 直接将重复的部分删除即可正常运行Maven命令

总结

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