【发布时间】：2018-01-30 16:44:48
【问题描述】：
使用 Mac OS 13，rbenv。
ruby 2.5.0p0（2017-12-25 修订版 61468）[x86_64-darwin17]
Rails 5.1.4
捆绑器版本 1.16.1
rbenv 1.1.1
我正在尝试启动一个新的 Rails 应用程序，然后得到这个：
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems.rb:241:in `bin_path': can't find gem bundler (>= 0) (Gem::GemNotFoundException)
from /Library/Ruby/Gems/2.3.0/gems/railties-5.1.4/lib/rails/generators/app_base.rb:382:in `bundle_command'
from /Library/Ruby/Gems/2.3.0/gems/railties-5.1.4/lib/rails/generators/app_base.rb:416:in `run_bundle'
from (eval):1:in `run_bundle'
from /Library/Ruby/Gems/2.3.0/gems/thor-0.20.0/lib/thor/command.rb:27:in `run'
from /Library/Ruby/Gems/2.3.0/gems/thor-0.20.0/lib/thor/invocation.rb:126:in `invoke_command'
from /Library/Ruby/Gems/2.3.0/gems/thor-0.20.0/lib/thor/invocation.rb:133:in `block in invoke_all'
from /Library/Ruby/Gems/2.3.0/gems/thor-0.20.0/lib/thor/invocation.rb:133:in `each'
from /Library/Ruby/Gems/2.3.0/gems/thor-0.20.0/lib/thor/invocation.rb:133:in `map'
from /Library/Ruby/Gems/2.3.0/gems/thor-0.20.0/lib/thor/invocation.rb:133:in `invoke_all'
from /Library/Ruby/Gems/2.3.0/gems/thor-0.20.0/lib/thor/group.rb:232:in `dispatch'
from /Library/Ruby/Gems/2.3.0/gems/thor-0.20.0/lib/thor/base.rb:466:in `start'
from /Library/Ruby/Gems/2.3.0/gems/railties-5.1.4/lib/rails/commands/application/application_command.rb:24:in `perform'
from /Library/Ruby/Gems/2.3.0/gems/thor-0.20.0/lib/thor/command.rb:27:in `run'
from /Library/Ruby/Gems/2.3.0/gems/thor-0.20.0/lib/thor/invocation.rb:126:in `invoke_command'
from /Library/Ruby/Gems/2.3.0/gems/thor-0.20.0/lib/thor.rb:387:in `dispatch'
from /Library/Ruby/Gems/2.3.0/gems/railties-5.1.4/lib/rails/command/base.rb:63:in `perform'
from /Library/Ruby/Gems/2.3.0/gems/railties-5.1.4/lib/rails/command.rb:44:in `invoke'
from /Library/Ruby/Gems/2.3.0/gems/railties-5.1.4/lib/rails/cli.rb:16:in `<top (required)>'
from /System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:127:in `require'
from /System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:127:in `rescue in require'
from /System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:40:in `require'
from /Library/Ruby/Gems/2.3.0/gems/railties-5.1.4/exe/rails:9:in `<top (required)>'
from /usr/local/bin/rails:22:in `load'
from /usr/local/bin/rails:22:in `<main>'
据我了解，这与 Ruby 版本有关，但我不知道如何解决该问题。
【问题讨论】：
-
将引发错误的命令添加到您的问题
-
Ruby 2.5 将默认包含 bundler gem，但在最后一刻他们取消了它。所以现在，我们仍然需要在新的 Ruby 2.5 安装上执行
gem install bundler，然后才能执行bundle install。顺便说一句，看起来您正在使用您的系统 Ruby。您应该强烈考虑使用像 rbenv 这样的 Ruby 环境管理器。 -
“将引发错误的命令添加到您的问题中”我运行
rails new app -
是的，我做了
gem install bundler并且我已经用 rbenv 安装了 Ruby 2.5.0。 -
你安装了 ruby 2.3 吗？我怀疑 ruby 2.5 不是当前的默认版本。似乎它仍然可以访问 2.3 版：来自 /System/Library/Frameworks/Ruby.framework/Versions/2.3/
标签： ruby-on-rails ruby