解决Failure to transfer org.apache.maven.plugins:maven-surefire-plugin:pom:2.12.4 from http://maven.al

一、异常类型

• 在创建maven时，发现pom.xml文件报出下面的错误。

• 错误异常：Failure to transfer org.apache.maven.plugins:maven-surefire-plugin:pom:2.12.4 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 nexus has elapsed or updates are forced. Original error: Could not transfer artifact org.apache.maven.plugins:maven-surefire-plugin:pom:2.12.4 from/to nexus (http://maven.aliyun.com/nexus/content/groups/public): maven.aliyun.com
  二、解决方法

• （1）右击pom.xml->Run As->Maven Clean

• （2） pom.xml->Run As->Maven Install