Intellij IDEA Maven 报错 'cannot reconnect'

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解决办法：

通过

 Helper->Show Log in Explorer

查看Idea的日志，就可以发现具体的原因

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Delete the entire .m2/repository folder manually, and then update your Maven project again.

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1、Intellij Idea Maven ‘cannot reconnect’ error
https://stackoverflow.com/questions/30615067/intellij-idea-maven-cannot-reconnect-error

2、Idea Maven 报错 Cannot reconnect
http://blog.csdn.net/glory1234work2115/article/details/51959784

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