3.0版本中进行第三方插件的开发，下载metersphere-platform-plugin源码后，使用maven进行install时，提示找不到metersphere-platform-plugin坐标内容。有知道怎么解决的么。
ownloading from alimaven: http://maven.aliyun.com/nexus/content/groups/public/io/metersphere/metersphere-platform-plugin/3.x/metersphere-platform-plugin-3.x.pom
[ERROR] [ERROR] Some problems were encountered while processing the POMs:
[FATAL] Non-resolvable parent POM for io.metersphere:metersphere-zentao-plugin:3.x: The following artifacts could not be resolved: io.metersphere:metersphere-platform-plugin:pom:3.x (absent): Could not find artifact io.metersphere:metersphere-platform-plugin:pom:3.x in alimaven (http://maven.aliyun.com/nexus/content/groups/public/) and ‘parent.relativePath’ points at wrong local POM @ line 7, column 13
[FATAL] Non-resolvable parent POM for io.metersphere:metersphere-tapd-plugin:3.x: The following artifacts could not be resolved: io.metersphere:metersphere-platform-plugin:pom:3.x (absent): io.metersphere:metersphere-platform-plugin:pom:3.x was not found in http://maven.aliyun.com/nexus/content/groups/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of alimaven has elapsed or updates are forced and ‘parent.relativePath’ points at wrong local POM @ line 7, column 13
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