maven clean以及打包出现的问题

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-clean-plugin:2.5:clean (default-clean) on project study-search: Failed to clean project: Failed to delete

删除失败一般分为两种情况，文件夹打开着呢，还有一种可能是要打的包被占用，比如说war包钉钉局域网发给别人，别人没有接收等等