From: zuerrong <zuerrong@...>
Date: 2011-08-29T19:05:27+09:00
Subject: Re: load mongo fail

Oh thank you, that's really the problem.
I have a ruby file named "mongo.rb" in the current dir, so irb try
load that file firstly.
Thanks for the point.

Regards.

2011/8/29 Josh Cheek <josh.cheek@gmail.com>:
> On Mon, Aug 29, 2011 at 2:45 AM, zuerrong <zuerrong@gmail.com> wrote:
>
>> Hi
>>
>> I have installed mongo gem firstly, but when I require 'mongo' it get
>> failed:
>>
>> irb(main):001:0> require 'rubygems'
>> => true
>> irb(main):002:0> require 'mongo'
>> NameError: uninitialized constant Mongo
>>        from ./mongo.rb:5
>>        from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:36:in
>> `gem_original_require'
>>        from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:36:in
>> `require'
>>        from (irb):2
>>
>>
>> This is my ruby and gem version:
>>
>> $ ruby -v
>> ruby 1.8.7 (2009-06-12 patchlevel 174) [x86_64-linux]
>> $ gem -v
>> 1.8.10
>>
>> Please help, thank you.
>>
>>
>
> You're using an old version of Ruby that leaves the current directory in the
> load path. This means that when you type `require "mongo"`, it is not
> requiring the mongo gem, instead it is requiring your local file. Look at
> the first line of the backtrace "from ./mongo.rb:5" The path to that file is
> ./mongo.rb, it's in your current directory. Obviously that file references
> `Mongo` on line 5, probably expecting that you'd already required the gem.
>