处理“宝石加载错误”时如何安装 Rails答案

【问题标题】：How to install Rails when dealing with "Load Error with Gems"处理“宝石加载错误”时如何安装 Rails
【发布时间】：2020-06-08 21:37:15
【问题描述】：

我正在尝试让 Ruby on Rails 在我的笔记本电脑上运行，但一直未能成功。在某些时候，我接受了一些不好的建议并使用了sudo，并一直在尝试撤消该错误和相应的问题。

截至目前，ruby -v 显示

ruby 2.7.1p83 (2020-03-31 revision a0c7c23c9c) [x86_64-darwin19]

所以，我认为 Ruby 已安装。当我尝试运行 gem install rails 或任何其他 gem 命令（如 gem install bundler）时，我收到此错误

Error loading RubyGems plugin "/Users/audreybrooke/.rvm/rubies/ruby-2.6.5/lib/ruby/gems/2.6.0/gems/executable-hooks-1.6.0/lib/rubygems_plugin.rb": cannot load such file -- executable-hooks/wrapper (LoadError)
Error loading RubyGems plugin "/Users/audreybrooke/.rvm/rubies/ruby-2.6.5/lib/ruby/gems/2.6.0/gems/gem-wrappers-1.4.0/lib/rubygems_plugin.rb": cannot load such file -- gem-wrappers (LoadError)
/Users/audreybrooke/.rbenv/versions/2.7.1/lib/ruby/2.7.0/yaml.rb:3: warning: It seems your ruby installation is missing psych (for YAML output).
To eliminate this warning, please install libyaml and reinstall your ruby.
Traceback (most recent call last):
    20: from /Users/audreybrooke/.rbenv/versions/2.7.1/bin/gem:21:in `<main>'
    19: from /Users/audreybrooke/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/gem_runner.rb:44:in `run'
    18: from /Users/audreybrooke/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/gem_runner.rb:79:in `do_configuration'
    17: from /Users/audreybrooke/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/gem_runner.rb:79:in `new'
    16: from /Users/audreybrooke/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/config_file.rb:182:in `initialize'
    15: from /Users/audreybrooke/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/config_file.rb:332:in `load_file'
    14: from /Users/audreybrooke/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems.rb:710:in `load_yaml'
    13: from /Users/audreybrooke/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:92:in `require'
    12: from /Users/audreybrooke/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:92:in `require'
    11: from /Users/audreybrooke/.rbenv/versions/2.7.1/lib/ruby/2.7.0/yaml.rb:4:in `<top (required)>'
    10: from /Users/audreybrooke/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:92:in `require'
     9: from /Users/audreybrooke/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:92:in `require'
     8: from /Users/audreybrooke/.rbenv/versions/2.7.1/lib/ruby/2.7.0/psych.rb:15:in `<top (required)>'
     7: from /Users/audreybrooke/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:92:in `require'
     6: from /Users/audreybrooke/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:92:in `require'
     5: from /Users/audreybrooke/.rbenv/versions/2.7.1/lib/ruby/2.7.0/psych/nodes.rb:2:in `<top (required)>'
     4: from /Users/audreybrooke/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:92:in `require'
     3: from /Users/audreybrooke/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:92:in `require'
     2: from /Users/audreybrooke/.rbenv/versions/2.7.1/lib/ruby/2.7.0/psych/nodes/node.rb:2:in `<top (required)>'
     1: from /Users/audreybrooke/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:92:in `require'
/Users/audreybrooke/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:92:in `require': incompatible library version - /Users/audreybrooke/.rvm/rubies/ruby-2.6.5/lib/ruby/gems/2.6.0/gems/stringio-0.1.0/lib/stringio.bundle (LoadError)

【问题讨论】：

标签： ruby-on-rails ruby rubygems

【解决方案1】：

这是因为你没有正确安装libyaml。由于您使用的是MacOS，也许使用homebrew 安装它可以解决问题。

brew install libyaml && brew link libyaml

我推荐使用rvm。它在后台处理这些依赖问题。

【讨论】：

【解决方案2】：

我做到了

sudo rm -rf ~/.rvm

因为我安装了 rvm 和 rbenv 并且可以正常工作

【讨论】：