ruby-on-rails - 更新 ruby​​gems 后 Ruby on Rails 出现错误 : "Failed to find gems [] >= 0"

Question

我刚刚安装了 Ruby on Rails，并尝试遵循 this tutorial我不断遇到警告，告诉我更新 ruby​​gems，然后运行 ​​gem pristine --all 。我更新使用 sudo gem install rubygems-update并尝试运行gem pristine --all ，这导致了以下错误:

ERROR:  While executing gem ... (Gem::Exception)
    Failed to find gems [] >= 0

我还尝试运行 bin/rails server在博客应用程序上，我收到以下错误:

/usr/local/lib/site_ruby/1.9.1/rubygems/core_ext/kernel_require.rb:55:in `require': cannot load such file -- bundler (LoadError)
    from /usr/local/lib/site_ruby/1.9.1/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /home/mariana/Documents/RD-anagram/rails-test/blog/bin/spring:8:in `<top (required)>'
    from bin/rails:3:in `load'
    from bin/rails:3:in `<main>'

我也无法运行rails --version ，因为我收到此错误:

/usr/local/lib/site_ruby/1.9.1/rubygems/dependency.rb:319:in `to_specs': Could not find 'railties' (>= 0) among 0 total gem(s) (Gem::LoadError)
Checked in 'GEM_PATH=/home/mariana/.gem/ruby/1.9.1:/usr/lib/ruby/gems/1.9.1', execute `gem env` for more information
    from /usr/local/lib/site_ruby/1.9.1/rubygems/dependency.rb:328:in `to_spec'
    from /usr/local/lib/site_ruby/1.9.1/rubygems/core_ext/kernel_gem.rb:65:in `gem'
    from /usr/local/bin/rails:22:in `<main>'

有谁知道怎么解决这个问题吗？我做错了什么吗？

Answer 1

看起来您缺少捆绑程序 gem。

做:-

gem install rails    
[sudo] gem install bundler
bundle install
gem install railties

如果上面的代码不起作用，你可以这样做 rvm implode 重新安装 rvm。请注意，该命令会递归删除所有 rvm 环境。