Maven打包异常：Failed to execute goal org.apache.maven.plugins:maven-resources-plugin:2.6:resource

问题：
Maven工程打包时报错：

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-resources-plugin:2.6:resources (default-resources) on project APD-DemoCase-Automation: Cannot create resource output directory: D:\2019Project\APD-DemoCase-Automation\target\classes -> [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]
[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

解决方案：
手动删除工程下自动生成的target目录，或执行命令：mvn clean

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再执行命令：mvn package
或者，直接执行：mvn clean package

这里需要忽略测试类，不忽略的话在打包时就会自动执行测试用例。
在pom.xml文件中加入以下配置： true

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或者，使用命令：mvn clean package -Dmaven.test.skip=true