无法让我的 rails 控制台工作

Question

eze@eze:~/Appp$ rbenv local
rbenv: no local version configured for this directory
eze@eze:~/Appp$ rbenv global
2.2.1
eze@eze:~/Appp$ rbenv versions
* 2.2.1 (set by /home/eze/.rbenv/version)

我最近用 rbenv 卸载并重新安装了 ruby，但是当我再次安装时，我发现除了 rails 控制台之外一切正常，这是输出错误

/home/eze/.rbenv/versions/2.2.1/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require': cannot load such file -- set (LoadError) from /home/eze/.rbenv/versions/2.2.1/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require' from /var/lib/gems/1.9.1/gems/bundler-1.6.5/lib/bundler/index.rb:1:in
`<top (required)>' from /var/lib/gems/1.9.1/gems/bundler-1.6.5/lib/bundler/source/rubygems.rb:204:in `fetch_specs' from /var/lib/gems/1.9.1/gems/bundler-1.6.5/lib/bundler/source/rubygems.rb:66:in `specs' from /var/lib/gems/1.9.1/gems/bundler-1.6.5/lib/bundler/lazy_specification.rb:53:in
  `__materialize__' from /var/lib/gems/1.9.1/gems/bundler-1.6.5/lib/bundler/spec_set.rb:88:in `block in materialize' from /var/lib/gems/1.9.1/gems/bundler-1.6.5/lib/bundler/spec_set.rb:85:in `map!' from /var/lib/gems/1.9.1/gems/bundler-1.6.5/lib/bundler/spec_set.rb:85:in
  `materialize' from /var/lib/gems/1.9.1/gems/bundler-1.6.5/lib/bundler/definition.rb:133:in `specs' from /var/lib/gems/1.9.1/gems/bundler-1.6.5/lib/bundler/definition.rb:178:in `specs_for' from /var/lib/gems/1.9.1/gems/bundler-1.6.5/lib/bundler/definition.rb:167:in
  `requested_specs' from /var/lib/gems/1.9.1/gems/bundler-1.6.5/lib/bundler/environment.rb:18:in `requested_specs' from /var/lib/gems/1.9.1/gems/bundler-1.6.5/lib/bundler/runtime.rb:13:in `setup' from /var/lib/gems/1.9.1/gems/bundler-1.6.5/lib/bundler.rb:120:in
  `setup' from /var/lib/gems/1.9.1/gems/bundler-1.6.5/lib/bundler/setup.rb:7:in `
  <top (required)>' from /home/eze/.rbenv/versions/2.2.1/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:128:in `require' from /home/eze/.rbenv/versions/2.2.1/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:128:in `rescue in require' from /home/eze/.rbenv/versions/2.2.1/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:39:in
    `require' from /var/lib/gems/1.9.1/gems/spring-1.3.3/lib/spring/commands.rb:33:in `
    <module:Spring>' from /var/lib/gems/1.9.1/gems/spring-1.3.3/lib/spring/commands.rb:4:in `
      <top (required)>' from /home/eze/.rbenv/versions/2.2.1/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require' from /home/eze/.rbenv/versions/2.2.1/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require' from /var/lib/gems/1.9.1/gems/spring-1.3.3/lib/spring/server.rb:9:in
        `
        <top (required)>' from /home/eze/.rbenv/versions/2.2.1/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:128:in `require' from /home/eze/.rbenv/versions/2.2.1/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:128:in `rescue in require' from /home/eze/.rbenv/versions/2.2.1/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:39:in
          `require'

Answer 1

解法：

做gem update --system。您似乎没有安装更新版本的 rubygems 来配合新版本的 Ruby.

抱歉，我花了很长时间才找到适合您的解决方案，现在看起来更明显了。 :)

原答案：

你确定全局（或者可能是本地的，如果你有一套）Ruby 版本是用 rbenv 正确设置的吗？您是否尝试过 rbenv rehash.

出于某种原因，您似乎缺少 Ruby 标准库中的 Set 模块 - 但因为我相信它是标准库的一部分并且应该存在，除非您的 Ruby安装以某种方式损坏，这让我想知道 rbenv 安装的垫片是否指向错误的位置。 rbenv rehash 应该可以解决这个问题，我相信，如果这是原因的话。

否则，您是否可以提供有关您的环境的更多信息？比如

的输出

rbenv local
rbenv global
rbenv versions

此外，您如何启动 rails 控制台？您是否在项目目录中执行 rails console？

如果您开始 irb 然后执行 require 'set'，它是否有效，还是会引发错误？

无法让我的 rails 控制台工作

Cant make my rails console work

ruby

rails-console

rbenv