宝石在 irb 中发现，而不是在 Ruby 中 [英] Gem found in irb, not in Ruby

问题描述

我安装了一些 gem，我正在尝试在 Ruby 应用程序中使用它们:

I have some gems installed, and I'm trying to use them in a Ruby app:

require 'rubygems'
require 'mygem'

但是，当我运行应用程序时，我收到此错误:<internal:lib/rubygems/custom_require>:29:inrequire': no such file to load -- mygem (LoadError)`

When I run the app, though, I get this error: <internal:lib/rubygems/custom_require>:29:inrequire': no such file to load -- mygem (LoadError)`

但是，如果我尝试在 irb 中要求 gem(确保首先 `require 'rubygems')，它可以正常工作.我应该做些什么?我尝试用谷歌搜索这个问题，但不明白.

But if I try requiring the gem inside irb (making sure to `require 'rubygems' first), it works fine. What am I supposed to do? I tried googling for this problem, but didn't understand.

在 ruby、gem 和 irb 上运行 which 表明它们都在 /opt/local/bin/，即，

Running a which on ruby, gem, and irb shows that they're all in /opt/local/bin/, i.e.,

> which ruby
/opt/local/bin/ruby
> which gem
/opt/local/bin/gem
> which irb
/opt/local/bin/irb

更新以回答提出的问题(是的，irb 和 ruby​​ 指向不同的文件夹):

Update to answer the questions posed (yep, irb and ruby are pointing to different folders):

$LOAD_PATH 和 $: 都包含似乎指向 ruby​​ 1.8 文件夹:

$LOAD_PATH and $: in irb both contain seem to be pointing to ruby 1.8 folders:

/opt/local/lib/ruby/site_ruby/1.8
/opt/local/lib/ruby/site_ruby/1.8/i686-darwin10
/opt/local/lib/ruby/site_ruby
/opt/local/lib/ruby/vendor_ruby/1.8
/opt/local/lib/ruby/vendor_ruby/1.8/i686-darwin10
/opt/local/lib/ruby/vendor_ruby
/opt/local/lib/ruby/1.8
/opt/local/lib/ruby/1.8/i686-darwin10
.

$: in ruby​​ 指向 ruby​​ 1.9.1 文件夹:

$: in ruby points to ruby 1.9.1 folders:

/usr/local/lib/ruby/site_ruby/1.9.1
/usr/local/lib/ruby/site_ruby/1.9.1/i386-darwin9.8.0
/usr/local/lib/ruby/site_ruby
/usr/local/lib/ruby/vendor_ruby/1.9.1
/usr/local/lib/ruby/vendor_ruby/1.9.1/i386-darwin9.8.0
/usr/local/lib/ruby/vendor_ruby
/usr/local/lib/ruby/1.9.1
/usr/local/lib/ruby/1.9.1/i386-darwin9.8.0

gem env 展示

RubyGems Environment:
  - RUBYGEMS VERSION: 1.4.1
  - RUBY VERSION: 1.8.7 (2010-12-23 patchlevel 330) [i686-darwin10]
  - INSTALLATION DIRECTORY: /opt/local/lib/ruby/gems/1.8
  - RUBY EXECUTABLE: /opt/local/bin/ruby
  - EXECUTABLE DIRECTORY: /opt/local/bin
  - RUBYGEMS PLATFORMS:
    - ruby
    - x86-darwin-10
  - GEM PATHS:
     - /opt/local/lib/ruby/gems/1.8
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :benchmark => false
     - :backtrace => false
     - :bulk_threshold => 1000
     - "gempath" => ["/opt/local/lib/ruby/gems/1.8"]
     - :sources => ["http://rubygems.org/", "http://gems.github.com", "http://gems.github.com"]
  - REMOTE SOURCES:
     - http://rubygems.org/
     - http://gems.github.com
     - http://gems.github.com

irb中的

Gem.path指向

/Users/grautur/.gem/ruby/1.8
/usr/local/lib/ruby/gems/1.8

ruby 中的

Gem.path 指向

Gem.path in ruby points to

/Users/grautur/.gem/ruby/1.9.1
/usr/local/lib/ruby/gems/1.9.1

推荐答案

我不知道发生了什么.但是，以下可能会有所帮助.

I'm not sure what's going on. However, the following may help.

在irb中，做

require 'rubygems'
require 'mygem'
puts $:

然后，在 ruby​​ 中，做

and then, in ruby, do

require 'rubygems'
puts $:

如果你还没有解决，请告诉我们你得到了什么.

and show us what you get if you haven't worked it out.

同样在命令行打印出gem env的结果.

also print out the results of doing gem env on the command line.

编辑 2: 看看如果在 irb 和 ruby​​ 中都需要 ruby​​gems 之后键入 puts Gem.path 会发生什么.请参阅感谢 Matt 描述 Rubygems

Edit 2: See what happens if you type in puts Gem.path after you've required rubygems in both irb and ruby. See thanks to Matt for describing Rubygems

这篇关于宝石在 irb 中发现，而不是在 Ruby 中的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！