码云GIT推送失败 - the remote end hung up unexpectedly Connection to gitee.com closed by remote host

前言 以前直接是在码云上新建了一个私有库，在直接git clone xxx下来的，现在git push不了。   错误提示 Your branch is based on 'origin/xxxx', but the upstream is gone. (use "git branch --unset-upstream" to fixup) git push -u origin master fa

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