Question

I am trying to install ruby-mp3info as a gem on my computer.
Running sudo gem install ruby-mp3info seems to work OK.
In my environment.rb file, I added config.gem "ruby-mp3info".
When I try to run the server, it fails, claiming I have some missing gems
Following the error message’s advice:

Run `rake gems:install` to install the missing gems.

I run the command, which simply returns my local path. Running the server again – I get the same error message.

Could someone explain what I am doing wrong? How does one go about installing gems from RubyForge – or in general?

How does the gem command know where to find the necessary files – they are not all stored on my computer. Does it have hardcoded urls built into it?

Answer 1

Here’s what did the trick.
In my environment.rb file, I had the following:

config.gem "ruby-mp3info"

Playing around with the options, I found that I had to specify the lib attribute:

config.gem "ruby-mp3info", :lib => "mp3info"

This solved the problem.