eclipse 4.15版本可以从maven私库中正常下载jar包，其他版本的eclipse 不能从maven私库下载jar包是什么原因呀？配置的相同的jdk和maven，同一个settings配置文件！！！
报什么错呢，基本上会有报错的
Could not calculate build plan: Plugin org.apache.maven.plugins:maven-resources-plugin:2.6 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-resources-plugin:jar:2.6
Plugin org.apache.maven.plugins:maven-resources-plugin:2.6 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-resources-plugin:jar:2.6
只能下载下来lastUpdated文件