git push fatal: HttpRequestException encountered. An error occurred while sending the request

1、windows7 向github提交代码报错:

$ git push
fatal: HttpRequestException encountered.
   An error occurred while sending the request.
fatal: HttpRequestException encountered.
   An error occurred while sending the request.
Username for 'https://github.com':

2、hexo 向 github中提交报错

fatal： could not read Username for 'https://github.com':No error

首先以为是公钥出错了，本地重新生成公钥，添加到github上，还是不行；用 SourceTree 测试git项目OK；猜测是git安装包出现问题，卸载git安装包，安装最新安装包，问题解决；