XXX package does not exist

Today, building a multi-module project with springboot, always being given at the time of install

Finally found the reason is the parent project using springboot plug

<plugin>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-maven-plugin</artifactId>

</plugin>

The parent project related to plug deleted, then the sub-project base project is also deleted on normal