Why isn't gosu working.

[cj]

This code is from a kidsruby tutorial on gosu.

It works in kids ruby. So the code is sound.
But why can't I run it from the terminal.
I copied the code into Text Wrangler and try to run it in the terminal.

This is the error message.

<internal:lib/rubygems/custom_require>:29:in `require': no such file to load -- gosu (LoadError)
    from <internal:lib/rubygems/custom_require>:29:in `require'
    from gosugame.rb:1:in `<main>'

Does this have something to do with where Gosu is on my computer?

Much thanks.
Chad

[Peter Hamilton]

do you have gosu installed?

Generally you want to do something like 'gem install gosu' in order to get it installed.  You may need to add "require 'rubygems'" to your application (before gosu) so the system can find it.

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[cj]

Yes. It came with my mac.
I got it to work. I added require 'rubygems'
But I'm still confused. If I select 'run'  in text wrangler the program runs. But it won't run via the terminal. Why?

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[Peter Hamilton]

Rubygems sets some environment variables that help the application find the correct gems.  Textwrangler probably sets those itself before running the application.