Why do do I get a "LoadError"? - ruby-on-rails

Question

I have two Ruby scripts, and I am calling those files and I am getting an error.
I have r1.rb and r2.rb. When I call r1.rb and r2.rb from r3.rb I get this error:
C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require': cannot load such file -- r1 (LoadError)
from C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from r3.rb:1:in `<main>'
r1.rb is:
def random
rand(1000000)
end
r2.rb is:
def random
(rand(26) + 65).chr
end
r3.rb is:
require 'r1'
require 'r2'
puts random

Answer 1

thumb rules when you use require, always use path in require statement [mostly when you use windows platform]
if you use load you need to place filename.rb but no need to pass file path. [First Check the requirement and use load because it is load every time in memory when call]
here I am modifying your code
require 'C:/PLACE YOUR FILE PATH HERE/r1'
require 'C:/PLACE YOUR FILE PATH HERE/r2'
puts random
Please let me know if this works for you
let me add one more things
Same way when you use irb, you have to do same way
>irb
irb(main):001:0> require 'c:/rubycode/test.rb'
=> true
#jdoe is suggest require_relative that's good approach
but I am getting below error
irb(main):001:0> require_relative 'test'
LoadError: cannot infer basepath
from (irb):1:in `require_relative'
from (irb):1
from C:/Ruby193/bin/irb:12:in `<main>'
irb(main):002:0> require_relative 'rubycode/test'
LoadError: cannot infer basepath
from (irb):2:in `require_relative'
from (irb):2
from C:/Ruby193/bin/irb:12:in `<main>'
irb(main):003:0> require_relative 'c:/rubycode/test'
LoadError: cannot infer basepath
from (irb):3:in `require_relative'
from (irb):3
from C:/Ruby193/bin/irb:12:in `<main>'
irb(main):004:0> require 'c:/rubycode/test'
=> true
irb(main):005:0>