Question

尝试使用Ruby（特别是红宝石）做任何事情时，出现以下错误：

@JsonInclude(JsonInclude.Include.NON_NULL)
@JsonPropertyOrder({
    "code",
    "message",
    "payload"
})
public class Train {

    @JsonTypeInfo(use = JsonTypeInfo.Id.CLASS, include=JsonTypeInfo.As.PROPERTY, property = "@type")
    @JsonProperty("code")
    private String code;
    @JsonProperty("message")
    private String message;
    @JsonProperty("payload")
    private List<Payload> payload = null;
    @JsonIgnore
    private Map<String, Object> additionalProperties = new HashMap<String, Object>();
//Getter
//Setter

我相信注意的是这一行：

/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>'

我是从LoadError: incompatible library version - /usr/local/rvm/gems/ruby-2.4.5/gems/psych-3.1.0/lib/psych.so，gem install puppet等那里获得的。我尝试卸载并重新安装libyaml，并且与Ruby相同。在执行gem update使其停止指向6.3.0 gem并指向4.10.2可执行文件之后，发生了错误。我需要Ruby才能使用Rspec来测试模块。有谁知道我该如何解决？

Answer 1

没有步骤来重现损坏的系统，很难说出发生了什么，但是我可以说一般地说，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。

在我继续之前，请注意，Puppet 4.10.2和4.10.3都是removed来自Rubygems。（尽管我可以使用PDK进行安装。）

对于其余部分，我假设使用4.10.4（只是为了与最新的4.10区别开来）。

推荐的方法是使用Puppet Development Kit (pdk)。如果下载并安装PDK，则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路径，可以尝试以下替代方法：

在Gemfile中硬编码所需的Puppet版本。

gem 'puppet', '4.10.4'

或者：

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

然后更新您的捆绑包：

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（这就是我所做的，因为它是值得的）：

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，您可以按照常规在特定版本的Puppet上运行单元测试：

bundle exec rake spec

或者您进行设置。

如何修复找不到的psych模块或正确的版本Ruby

1 个答案: