导入maven项目pom.xml文件报错

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初学者，导入maven项目pom文件报错如下：

Execution default-resources of goal org.apache.maven.plugins:maven-resources-plugin:2.5:resources failed: Plugin org.apache.maven.plugins:maven-resources-plugin:2.5 or one of its dependencies could not be resolved: Failure to transfer commons-cli:commons-cli:jar:1.0 from http://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 commons-cli:commons-cli:jar:1.0 from/to central (http://repo.maven.apache.org/maven2): connection timed out to http://repo.maven.apache.org/maven2/commons-cli/commons-cli/1.0/commons-cli-1.0.jar (org.apache.maven.plugins:maven-resources-plugin:2.5:resources:default-resources:process-resources)

但又不知道怎么办，是不是很纠结、无奈，我曾经也是这样，废话不多说，教你们怎么解决：

解决方法：下载一个 everything的工具，输入“.lastUpdated”进行搜索，搜索完后全部删除.lastUpdated后缀的文件，直接删掉。然后在项目名右击，选择maven->update project，即可。或者也可以按快捷键Alt+F5 就可以

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