报错：

kex_exchange_identification: Connection closed by remote host
Connection closed by 54.151.144.214 port 22
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

解决办法：

重新获取本地ssh，复制ssh到gitLab

获取ssh：

1.Git生成密钥
设定Git的username和email
git config --global user.name "你的用户名"
git config --global user.email  "你的邮箱"
2.创建SSH key
cd ~/.ssh
ssh-keygen -t rsa -C "你的邮箱"
4.会出现以下的提示
Generating public/private rsa key pair.
Enter file in which to save the key (/c/Users/Zhou/.ssh/id_rsa):
一路回车默认就可以了，这样你的公钥和私钥就同时保存在了C:\Users\username\.ssh下了。
5.获取SSH key
cat id_rsa.pub

Github添加SSH key

点解GitHub界面的右上角头像，选择setting，然后点击SSH and GPG keys