我第一次尝试使用Capistrano将Rails 7应用部署到Vultr VPS。我遵循了GoRails.com上的**指南。**一切顺利，直到最后一步：使用Capistrano部署应用程序。我的设置如下：

• Ubuntu 22.04.2 LTS Jammy（客户端和服务器）
• Ruby 3.2.2 / Rails7.0.4.2
• rbenv 1.2.0-59-g0704e65
• Bundler版本2.4.10
• 卡皮斯特拉诺（3.17.2）
• capistrano-bundler（2.1.0）
• capistrano-passenger（0.2.1）
• capistrano-rails（1.6.2）
• capistrano-rbenv（2.2.0）
• net-ssh（7.1.0）
• openssl（默认值：3.1.0）

当运行cap production deploy（ssh服务器配置文件中的 withHostKey /etc/ssh/ssh_host_ed25519_key）时，我得到以下错误：

verify_host_key: :secure is deprecated, use :always
Thread:0x00007f169f27a710 /home/user/.rbenv/versions/3.2.0/lib/ruby/gems/3.2.0/gems/sshkit-1.21.4/lib/sshkit/runners/parallel.rb:10 run> terminated with exception (report_on_exception is true):
/home/user/.rbenv/versions/3.2.0/lib/ruby/gems/3.2.0/gems/sshkit-1.21.4/lib/sshkit/runners/parallel.rb:15:in rescue in block (2 levels) in execute': Exception while executing as deploy@xx.xx.xx.xx: could not settle on host_key algorithm (SSHKit::Runner::ExecuteError)
Server host_key preferences: ssh-ed25519
Client host_key preferences: ecdsa-sha2-nistp521-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp521,ecdsa-sha2-nistp384,ecdsa-sha2-nistp256,ssh-rsa-cert-v01@openssh.com,ssh-rsa-cert-v00@openssh.com,ssh-rsa,rsa-sha2-256,rsa-sha2-512
from /home/user/.rbenv/versions/3.2.0/lib/ruby/gems/3.2.0/gems/sshkit-1.21.4/lib/sshkit/runners/parallel.rb:11:inblock (2 levels) in execute'
/home/user/.rbenv/versions/3.2.0/lib/ruby/gems/3.2.0/gems/net-ssh-7.1.0/lib/net/ssh/transport/algorithms.rb:410:in `negotiate': could not settle on host_key algorithm (Net::SSH::Exception)
Server host_key preferences: ssh-ed25519
Client host_key preferences: ecdsa-sha2-nistp521-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp521,ecdsa-sha2-nistp384,ecdsa-sha2-nistp256,ssh-rsa-cert-v01@openssh.com,ssh-rsa-cert-v00@openssh.com,ssh-rsa,rsa-sha2-256,rsa-sha2-512
...
(Backtrace restricted to imported tasks)
cap aborted!
SSHKit::Runner::ExecuteError: Exception while executing as deploy@xx.xx.xx.xx: could not settle on host_key algorithm
Server host_key preferences: ssh-ed25519
Client host_key preferences: ecdsa-sha2-nistp521-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp521,ecdsa-sha2-nistp384,ecdsa-sha2-nistp256,ssh-rsa-cert-v01@openssh.com,ssh-rsa-cert-v00@openssh.com,ssh-rsa,rsa-sha2-256,rsa-sha2-512

如果服务器上没有HostKey变量，我会得到这个错误：

verify_host_key: :secure is deprecated, use :always
Thread:0x00007f0d3c68a6c8 /home/user/.rbenv/versions/3.2.0/lib/ruby/gems/3.2.0/gems/sshkit-1.21.4/lib/sshkit/runners/parallel.rb:10 run> terminated with exception (report_on_exception is true):
/home/user/.rbenv/versions/3.2.0/lib/ruby/gems/3.2.0/gems/sshkit-1.21.4/lib/sshkit/runners/parallel.rb:15:in `rescue in block (2 levels) in execute': Exception while executing as deploy@xx.xx.xx.xx: fingerprint SHA256:6EF6B30F9E557F948C402C89002C7C8A is unknown for "xx.xx.xx.xx" (SSHKit::Runner::ExecuteError)
...
(Backtrace restricted to imported tasks)
cap aborted!
SSHKit::Runner::ExecuteError: Exception while executing as deploy@xx.xx.xx.xx: fingerprint SHA256:6EF6B30F9E557F948C402C89002C7C8A is unknown for "xx.xx.xx.xx"

Caused by:
Net::SSH::HostKeyUnknown: fingerprint SHA256:6EF6B30F9E557F948C402C89002C7C8A is unknown for "xx.xx.xx.xx"

Tasks: TOP => rbenv:validate
(See full trace by running task with --trace)

我可以在服务器中使用无密码的ssh，没有问题，所以PubKey身份验证似乎工作得很好。
有人知道如何解决这个问题吗？非常感谢任何帮助。
我已经尝试了许多类似的发声错误的建议张贴在这里和其他地方，包括：
1.删除客户端上的known_hosts并将服务器指纹添加到新的known_hosts文件中。
1.将PubkeyAcceptedKeyTypes=+ ed 25519添加到服务器的ssh配置文件（建议here）
1.将客户端和服务器上的所有私钥和公钥更改为使用ed 25519
1.关闭deploy.rb中ssh_options中的verify_host_key设置