“耙子规格”作品，“规格规格”；没有
当我将第一个 gem 依赖项添加到 config/environment.rb (will_paginate) 时，我在运行 rspec 时遇到错误，如下所示：
nik$ spec spec/
Missing these required gems:
will_paginate
You're running:
ruby 1.8.6.369 at /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby
rubygems 1.3.7 at /Users/nik/.gem/ruby/1.8, /Library/Ruby/Gems/1.8, /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8
Run `rake gems:install` to install the missing gems.
它没有拾取第一个我使用 macports 安装了 $PATH 中的 ruby 二进制文件：
nik$ ruby -v
ruby 1.8.7 (2010-06-23 patchlevel 299) [i686-darwin9]
nik$ which ruby
/opt/local/bin/ruby
奇怪的是，rake spec 成功了：
nik$ rake spec
(in /Users/nik/rails_projects/bigchan)
....................................................................................
Finished in 2.314131 seconds
84 examples, 0 failures
When I added my first gem dependency to config/environment.rb, (will_paginate), I'm encountering an error when running rspec as follows:
nik$ spec spec/
Missing these required gems:
will_paginate
You're running:
ruby 1.8.6.369 at /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby
rubygems 1.3.7 at /Users/nik/.gem/ruby/1.8, /Library/Ruby/Gems/1.8, /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8
Run `rake gems:install` to install the missing gems.
It's not picking up the first ruby binary in my $PATH, which I installed with macports:
nik$ ruby -v
ruby 1.8.7 (2010-06-23 patchlevel 299) [i686-darwin9]
nik$ which ruby
/opt/local/bin/ruby
Curiously, rake spec succeeds:
nik$ rake spec
(in /Users/nik/rails_projects/bigchan)
....................................................................................
Finished in 2.314131 seconds
84 examples, 0 failures
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你有不同的命令来查找不同版本的 ruby，因此 - 不同的宝石集。
将向您展示至少两个版本的 ruby。
/usr/bin中（运行spec spec/时使用）/opt/local/bin中（运行rake spec时使用）删除你不需要的东西以及与之相关的所有东西。
You have different commands looking up different versions of ruby, hence - different sets of gems.
will show you at least two versions of ruby.
/usr/bin(used when runningspec spec/)/opt/local/bin(used when runningrake spec)Nuke the one you don't need and everything related to it.