Git 从身份验证套接字读取响应长度时出错

在我的RubyonRails项目中，我使用capistrano、unicorn、postgresql和nginx来部署我的项目。当我运行

cap production git:check

时，我收到以下错误：

Error reading response length from authentication socket.

日志跟踪：

INFO [13522bc0] Running /usr/bin/env mkdir -p /tmp/deploy_test/ as mezbah@192.168.137.130
DEBUG [13522bc0] Command: /usr/bin/env mkdir -p /tmp/deploy_test/
INFO [13522bc0] Finished in 0.291 seconds with exit status 0 (successful).
DEBUG Uploading /tmp/deploy_test/git-ssh.sh 0.0%
INFO Uploading /tmp/deploy_test/git-ssh.sh 100.0%
INFO [3b379ef0] Running /usr/bin/env chmod +x /tmp/deploy_test/git-ssh.sh as mezbah@192.168.137.130
DEBUG [3b379ef0] Command: /usr/bin/env chmod +x /tmp/deploy_test/git-ssh.sh
INFO [3b379ef0] Finished in 0.067 seconds with exit status 0 (successful).
INFO [8355617a] Running /usr/bin/env git ls-remote --heads git@github.com:mezbahalam/deploy_test.git as mezbah@192.168.137.130
DEBUG [8355617a] Command: ( GIT_ASKPASS=/bin/echo GIT_SSH=/tmp/deploy_test/git-ssh.sh /usr/bin/env git ls-remote --heads git@github.com:mezbahalam/deploy_test.git )
DEBUG [8355617a]    Error reading response length from authentication socket.
DEBUG [8355617a]    6399a4a331342141ed3bbf3afb58f58828f96c76    refs/heads/master
INFO [8355617a] Finished in 9.683 seconds with exit status 0 (successful).

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我读了一些，但我想不出任何解决办法

我不知道为什么会发生这种情况，但我在我的许多部署中都看到过这种情况，并且它们仍然可以完美地工作。我认为这个错误可以忽略。

TL；DR

# start/restart ssh-agent
eval "$(ssh-agent -s)"

# add the desired ssh-key
ssh-add ~/.ssh/id_rsa

有关更多详细信息，请参阅

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我过去也遇到过同样的问题，这篇文章帮助我解决了很多问题：

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希望有帮助。

当我遇到这种情况时，是因为ssh代理不再运行了。我重新启动了它，并在运行

ssh add-L