我该如何修复未找到或版本不正确的心理模块 Ruby

Question

尝试使用 Ruby 执行任何操作时出现以下错误，特别是 ruby gems:

/usr/local/rvm/rubies/ruby-2.4.5/lib/ruby/2.4.0/yaml.rb:5:in `<top (required)>':
It seems your ruby installation is missing psych (for YAML output).
To eliminate this warning, please install libyaml and reinstall your ruby.
/usr/local/rvm/rubies/ruby-2.4.5/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:130:in `require': incompatible library version - /usr/local/rvm/gems/ruby-2.4.5/gems/psych-3.1.0/lib/psych.so (LoadError)
    from /usr/local/rvm/rubies/ruby-2.4.5/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:130:in `rescue in require'
    from /usr/local/rvm/rubies/ruby-2.4.5/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:34:in `require'
    from /usr/local/rvm/gems/ruby-2.4.5/gems/psych-3.1.0/lib/psych.rb:16:in `rescue in <top (required)>'
    from /usr/local/rvm/gems/ruby-2.4.5/gems/psych-3.1.0/lib/psych.rb:13:in `<top (required)>'
    from /usr/local/rvm/rubies/ruby-2.4.5/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /usr/local/rvm/rubies/ruby-2.4.5/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /usr/local/rvm/rubies/ruby-2.4.5/lib/ruby/2.4.0/yaml.rb:6:in `<top (required)>'
    from /usr/local/rvm/rubies/ruby-2.4.5/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /usr/local/rvm/rubies/ruby-2.4.5/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /usr/local/rvm/rubies/ruby-2.4.5/lib/ruby/site_ruby/2.4.0/rubygems.rb:729:in `load_yaml'
    from /usr/local/rvm/rubies/ruby-2.4.5/lib/ruby/site_ruby/2.4.0/rubygems/config_file.rb:349:in `load_file'
    from /usr/local/rvm/rubies/ruby-2.4.5/lib/ruby/site_ruby/2.4.0/rubygems/config_file.rb:202:in `initialize'
    from /usr/local/rvm/rubies/ruby-2.4.5/lib/ruby/site_ruby/2.4.0/rubygems/gem_runner.rb:79:in `new'
    from /usr/local/rvm/rubies/ruby-2.4.5/lib/ruby/site_ruby/2.4.0/rubygems/gem_runner.rb:79:in `do_configuration'
    from /usr/local/rvm/rubies/ruby-2.4.5/lib/ruby/site_ruby/2.4.0/rubygems/gem_runner.rb:44:in `run'
    from /usr/local/rvm/rubies/ruby-2.4.5/bin/gem:21:in `<main>'

我相信注释行是这一行：

LoadError: incompatible library version - /usr/local/rvm/gems/ruby-2.4.5/gems/psych-3.1.0/lib/psych.so

我从 gem install puppet、gem update 等那里得到这个。我尝试卸载并重新安装 libyaml，与 Ruby 相同。该错误发生在我执行 bundle uninstall puppet 以使其停止指向 6.3.0 gem 并指向 4.10.2 可执行文件之后。我需要 Ruby 才能使用 Rspec 来测试模块。有谁知道我该如何解决这个问题？

Answer 1

如果没有重现损坏系统的步骤，很难说出发生了什么，但我可以概括地说一下如何正确设置它以使用特定版本的 Puppet。

this有帮助吗？在最坏的情况下，您可能可以卸载 RVM 并重新安装它。

在我继续之前，请注意 Puppet 4.10.2 和 4.10.3 都是 removed 来自 Rubygems。（虽然我能够使用 PDK 安装它。）

对于其余部分，我假定为 4.10.4（只是为了将其与最新的 4.10 区分开来）。

推荐的方法是使用 Puppet Development Kit (pdk)。如果您下载并安装 PDK，您可能只需要执行以下步骤：

pdk convert
rm Gemfile.lock
PUPPET_GEM_VERSION=4.10.4 bundle update # If that version isn't already in PDK.
pdk test unit --puppet-version 4.10.4

如果您不想走 PDK 之路，您可以尝试以下替代方案：

在 Gemfile 中硬编码您想要的 Puppet 版本。

gem 'puppet', '4.10.4'

或者：

gem 'puppet', '~> 4.10' # latest 4.10

然后更新您的包：

rm -f Gemfile.lock
bundle update

或者，您可以通过添加以下代码来实现 PUPPET_GEM_VERSION 功能（我就是这么做的，物有所值）：

if puppetversion = ENV['PUPPET_GEM_VERSION']
  gem 'puppet', puppetversion
else
  gem 'puppet'
end

然后：

rm -f Gemfile.lock
PUPPET_GEM_VERSION='~> 4.10' bundle update

现在您可以运行您的单元测试针对特定版本的 Puppet 正常：

bundle exec rake spec

或者无论您如何设置。

我该如何修复未找到或版本不正确的心理模块 Ruby

How do I fix psych module not being found or being the right version Ruby

ruby

puppet

rspec-puppet