我这里的<parent>标签报错

Project build error: Non-resolvable parent POM for pers.sj:DomoSpringBoot:0.0.1-SNAPSHOT: Failure to transfer org.springframework.boot:spring-boot-starter-parent:pom:2.1.1.RELEASE from https://

 repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced. Original error: Could not transfer 

 artifact org.springframework.boot:spring-boot-starter-parent:pom:2.1.1.RELEASE from/to central (https://repo.maven.apache.org/maven2): Received fatal alert: protocol_version and 'parent.relativePath' points 

 at no local POM