我找了很久才找到这个。这对我来说是完美的。

Go to "Git Bash" just like cmd. Right click and "Run as Administrator". Type ssh-keygen Press enter. It will ask you to save the key to the specific directory. Press enter. It will prompt you to type password or enter without password. The public key will be created to the specific directory. Now go to the directory and open .ssh folder. You'll see a file id_rsa.pub. Open it on notepad. Copy all text from it. Go to https://gitlab.com/-/profile/keys or Paste here in the "key" textfield. Now click on the "Title" below. It will automatically get filled. Then click "Add key".

现在试一试，肯定会管用的。

我有gitlab运行docker，这是我所做的解决我的问题。

发现在docker /var/log/gitlab/sshd/current内部出现了多条消息:

身份验证被拒绝:文件/var/opt/gitlab/.ssh/authorized_keys的所有权或模式错误

之后，我将该文件的所有权从99:users更改为git:users:

Chown git:users authorized_keys

步骤要做，得到同样的错误，但我修复了它。 Gitlab需要ssh-rsa，所以下面是运行ssh for rsa的代码

ssh-keygen -o -t rsa -b 4096 -C "name@gmail.com"

name@gmail.com是您的gitlab帐户电子邮件

It will prompt you to enter so just hit Enter after the below code is prompt, Enter file in which to save the key (/home/yourDesktopName/.ssh/id_rsa): It will prompt again you to enter so just hit Enter after the below code is prompt, Enter passphrase (empty for no passphrase): It will prompt again for the last you to enter so just hit Enter after the below code is prompt, Enter same passphrase again: You will show your ssh-rsa generate. Login to your Gitlab account and Go to the right navbar you will get setting and in the left sidebar you will get ssh key. Enter in it. Look above the prompt asking you to enter, you will get the path of ssh-rsa. Go to your SSH folder and get the id_rsa.pub Open it and get the key and Copy Paste to the Gitlab and you are nearly to done. Check by: ssh -T git@gitlab.com You will get: Welcome to GitLab, @joy4! Done.

这两种访问git存储库的方式之间似乎存在差异，即使用SSH或HTTPS。对我来说，我遇到这个错误是因为我试图使用SSH推送我的本地存储库。

这个问题可以简单地通过单击项目登录页面上的克隆按钮来解决，复制HTTPS链接并将其替换为格式为“git@gitlab...”的SSH链接。

当你有多个git帐户，你想要不同的ssh密钥 您必须遵循生成ssh密钥的相同步骤，但请确保 你

ssh-keygen -t ed25519 -C "your-email-id@gmail.com" 

输入您想要保存的路径(例如:my-pc/Desktop/.ssh/ed25519)

添加公钥到你的gitlab(如何添加ssh密钥到gitlab)

您必须使用下面的命令创建新的ssh标识

ssh-add ~/my-pc/Desktop/.ssh/ed25519

我在gitlab help中找到了解决方案。

To create a new SSH key pair: 
 1. Open a terminal on Linux or macOS, or Git Bash / WSL on Windows.
 2. Generate a new ED25519 SSH key pair: ssh-keygen -t ed25519 -C "email@example.com"
 2.1 Or, if you want to use RSA: ssh-keygen -o -t rsa -b 4096 -C "email@example.com"
 3. Next, you will be prompted to input a file path to save your SSH key pair to... use the suggested path by pressing Enter
 4. Once the path is decided, you will be prompted to input a password to secure your new SSH key pair. It's a best practice to use a password, but it's not required and you can skip creating it by pressing Enter twice.
 5. Copy your public SSH key to the clipboard by using one of the commands below depending on your Operating System:
        macOS:        pbcopy < ~/.ssh/id_ed25519.pub
        WSL / GNU/Linux (requires the xclip package):      xclip -sel clip < ~/.ssh/id_ed25519.pub
        Git Bash on Windows:      cat ~/.ssh/id_ed25519.pub | clip
 6. Navigating to SSH Keys and pasting your public key in the Key field
 7. Click the Add key button

我希望它能帮助到你们中的一些人!