Failed to execute goal org.apache.maven.plugins:maven-clean-plugin:2.4.1:clean (default-clean) 解决办法

描述：淘淘商城项目练习第二天，分页综合测试，启动maven出现如下问题

Failed to execute goal org.apache.maven.plugins:maven-clean-plugin:2.4.1:clean (default-clean) on project taotao-manager-web: Failed to clean project: Failed to delete E:\programs.workspace\taotao\taotao-manager\taotao-manager-web\target\tomcat\logs\access_log.2017-05-10 -> [Help 1]

解决：这是日志被占用，说明已经启动了一个maven了，手动关闭就行了，要是不会关闭，重启eclipse就行了