Uninitialized constant RGhost::Color - How to fix it!

I'm replacing PDF::Writer with RGhost in my Rails application at the moment - after trying out Prawn and realizing that - although it's a great library - it's fast enough either and doesn't meet our real life needs yet (really wide tables were just cut off). RGhost has great documentation, but there is one pitfall when using it with Rails and Ruport: the uninitialized constant RGhost::Color error. When you google for it, you only find a few Portuguese forum posts with no solution. The solution is pretty simple, though: On my Mac, the error occurred in /Library/Ruby/Gems/1.8/gems/rghost-0.8.6/lib/rghost/font_map.rb. In the first lines of the file, 'color' is required. The problem is this: when you have PDF::Writer installed, it depends on a gem with the name 'color'. And that's what gets required when you use RGhost in Rails (under certain circumstances). So the solution is to replace this line:

require 'color'

with this line:

require File.dirname(__FILE__) + '/color'

That's it! Oh, and don't forget to set the path to your Ghostscript executable like so:

RGhost::Config::GS[:path]='/opt/local/bin/gs'

Enjoy!

If this was useful for you, please take a minute and recommend me:

Thank you!

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