Question

我使用的ruby版本是1.8.6 我使用命令“gem install net-ssh”安装了gem“net / ssh” 但是在运行以下脚本

require 'rubygems'
require 'net/ssh'
  HOST = '10.102.5.100'
  USER = 'user'
  PASS = 'test'

  Net::SSH.start( HOST, USER, :password => PASS ) do|ssh|
    result = ssh.exec!('stat ssl')
    puts result
  end

错误：

/usr/local/rubygems/gems/gems/net-ssh-2.9.1/lib/net/ssh/config.rb:106:in `load': undefined method `start_with?' for "*":String (NoMethodError)
    from /usr/local/rubygems/lib/rubygems/custom_require.rb:36:in `partition'
    from /usr/local/rubygems/gems/gems/net-ssh-2.9.1/lib/net/ssh/config.rb:106:in `each'
    from /usr/local/rubygems/gems/gems/net-ssh-2.9.1/lib/net/ssh/config.rb:106:in `partition'
    from /usr/local/rubygems/gems/gems/net-ssh-2.9.1/lib/net/ssh/config.rb:106:in `load'
    from /usr/local/rubygems/gems/gems/net-ssh-2.9.1/lib/net/ssh/config.rb:81:in `foreach'
    from /usr/local/rubygems/gems/gems/net-ssh-2.9.1/lib/net/ssh/config.rb:81:in `load'
    from /usr/local/rubygems/gems/gems/net-ssh-2.9.1/lib/net/ssh/config.rb:63:in `for'
    from /usr/local/rubygems/lib/rubygems/custom_require.rb:36:in `inject'
    from /usr/local/rubygems/gems/gems/net-ssh-2.9.1/lib/net/ssh/config.rb:62:in `each'
    from /usr/local/rubygems/gems/gems/net-ssh-2.9.1/lib/net/ssh/config.rb:62:in `inject'
    from /usr/local/rubygems/gems/gems/net-ssh-2.9.1/lib/net/ssh/config.rb:62:in `for'
    from /usr/local/rubygems/gems/gems/net-ssh-2.9.1/lib/net/ssh.rb:239:in `configuration_for'
    from /usr/local/rubygems/gems/gems/net-ssh-2.9.1/lib/net/ssh.rb:182:in `start'
    from TestSSH.rb:9

为什么我会收到此错误？

Answer 1

正如您对问题的评论所指出的那样，问题出现了，因为Ruby 1.8.6没有String#start_with?方法。最好的解决方案是升级到更新的Ruby。

也就是说，根据the net-ssh README，2.5.1之前的版本支持Ruby 1.8.x.从net-ssh版本2.5.0开始直观地检查文件lib / net / ssh / config.rb，确认它不使用start_with?方法，因此您可以尝试使用该方法。请务必阅读the changelog以确保您使用的版本中包含所需的功能。

Ruby错误：未定义的方法`start_with？＆＃39;使用Net :: SSH.start

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