我下载了脚本架，但是编译不过去。报这个错误Failure to transfer org.springframework.boot:spring-boot-starter-parent:pom:2.2.6.RELEASE from http://maven.aliyun.com/nexus/content/groups/public/ was cached in the local repository, resolution will not be reattempted until the update interval of alimaven has elapsed or updates are forced. Original error: Could not transfer artifact org.springframework.boot:spring-boot-starter-parent:pom:2.2.6.RELEASE from/to alimaven (http://maven.aliyun.com/nexus/content/groups/public/): sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target less… (Ctrl+F1)
Inspection info: Inspects a Maven model for resolution problems.