执行mvn clean 命令 发现error异常，内容如下
The project com.xx.xx has 1 error [ERROR] Non-resolvable parent POM: Could not find artifact com.xx.xx and 'parent.relativePath' points at wrong local POM @ line x, column x.
查了下出错的module所在的POM文件，发现当前parent依赖中没有relativePath，分析该pom文件的父pom跳过了上一层。使用相对路径../../找到正确的相对路径，再试，成功！
<parent> <artifactId>boot</artifactId> <groupId>com.sb.boot</groupId> <version>1.0-SNAPSHOT</version> <relativePath>../../pom.xml</relativePath> </parent>
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