Question

刚升级到：

rails', '4.1.7
ruby 2.0.0p481 (2014-05-08 revision 45883) [universal.x86_64-darwin14]
RVM 1.26.0

当我尝试

时

$rails s

我收到此错误：

Could not find gem 'pg (~> 0.17.1) ruby' in the gems available on this machine.

这是我的Gemfile

gem 'rails', '4.1.7'

group :development, :test do
  gem 'sqlite3'
end

group :production do
  gem 'pg', '~> 0.17.1'
  gem 'rails_12factor'
end
...

我试过了：

 $ gem install pg

我得到了：

ERROR:  While executing gem ... (Gem::FilePermissionError)
You don't have write permissions for the /Library/Ruby/Gems/2.0.0 directory.

更新1：

rmv list

rvm rubies

ruby-1.9.3-p327 [ x86_64 ]
ruby-1.9.3-p362 [ x86_64 ]
ruby-1.9.3-p550 [ x86_64 ]
ruby-2.0.0-rc1 [ x86_64 ]
* ruby-2.1.4 [ x86_64 ]

如果我做了红宝石，我会得到：

/usr/bin/ruby

这意味着我正在使用Ruby系统？或者RVM安装在系统文件夹下？

更新2：

我从System Ruby切换。我做了：

$ rvm使用默认

Using /Users/myname/.rvm/gems/ruby-2.1.4

$ ruby：

/Users/myname/.rvm/rubies/ruby-2.1.4/bin/ruby

$ ruby -v

ruby 2.1.4p265 (2014-10-27 revision 48166) [x86_64-darwin14.0]

现在，如果我这样做

$ rails -v

/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/dependency.rb:296:in `to_specs': Could not find 'railties' (>= 0) among 8 total gem(s) (Gem::LoadError)
from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/dependency.rb:307:in `to_spec'
from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_gem.rb:47:in `gem'
from /usr/bin/rails:22:in `<main>'

我很困惑。这是否意味着我需要重新安装rails ??

在这台机器上可用的宝石中找不到宝石'pg（〜＆gt; 0.17.1）红宝石'

0 个答案: