# Ruby-mp3info

**URL:** <https://www.ruby-forum.com/t/ruby-mp3info/100056>\
**Category:** Ruby\
**Created:** [July 26, 2006, 10:05pm UTC](https://www.ruby-forum.com/t/ruby-mp3info/100056 "2006-07-26T22:05:12Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![spacechurro](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/d2c977/32.png) [@spacechurro](https://www.ruby-forum.com/u/spacechurro)\
**Post date:** [July 26, 2006, 10:05pm UTC](https://www.ruby-forum.com/t/ruby-mp3info/100056/1 "2006-07-26T22:05:12Z")

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i have checked around on the net, but have not found anything… i also  
can’t get the search to work on this site either, so i decided to try  
here…

i am trying to get this package to work… installed the gem…

then did this…

require “mp3info”

Mp3Info.open(“myfile.mp3”)

and all i get is this:

mp3.rb:4: uninitialized constant Mp3Info (NameError)

i am sure i am doing something really stupid… but i am stumped…

any ideas?

thanks!

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**Author:** ![spacechurro](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/d2c977/32.png) [@spacechurro](https://www.ruby-forum.com/u/spacechurro)\
**Post date:** [July 26, 2006, 10:12pm UTC](https://www.ruby-forum.com/t/ruby-mp3info/100056/2 "2006-07-26T22:12:21Z")

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Sergio R. wrote:

> Mp3Info.open(“myfile.mp3”)  
> thanks  
> Use require ‘rubygems’ first.

-Justin

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<div class="post-metadata">

**Author:** ![spacechurro](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/d2c977/32.png) [@spacechurro](https://www.ruby-forum.com/u/spacechurro)\
**Post date:** [July 26, 2006, 10:28pm UTC](https://www.ruby-forum.com/t/ruby-mp3info/100056/3 "2006-07-26T22:28:21Z")

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> Use require ‘rubygems’ first.
> 
> -Justin

got it! thanks!

i tried that, mixed with other stuff i found via google… with no luck…

the winning combo is:

require “rubygems”  
require “mp3info”

thanks again…

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<div class="post-metadata">

**Author:** ![spacechurro](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/d2c977/32.png) [@spacechurro](https://www.ruby-forum.com/u/spacechurro)\
**Post date:** [July 26, 2006, 10:31pm UTC](https://www.ruby-forum.com/t/ruby-mp3info/100056/4 "2006-07-26T22:31:53Z")

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It didn’t find the package. It worked after I add the path of mp3info to  
$:,  
ie,

$:.push(“c:/ruby/lib/ruby/gems/1.8/gems/ruby-mp3info-0.5/lib”)  
require “mp3info”

Nam