From: Dd Dd <dd25@...>
Date: 2010-11-15T18:37:46+09:00
Subject: Can't get Ruby programs to work from Command Prompt

Hello; I'm having a problem running Ruby programs through the command
prompt.  I have a Ruby program called scope.rb, which is a simple
oscilloscope which runs using an Arduino platform, and I enter "ruby
scope.rb", but I get the following message (the file is in the bin
folder:

ruby 1.9.2p0 (2010-08-18) [i386-mingw32]

C:\Users\Deepak>cd Ruby192

C:\Users\Deepak\Ruby192>cd bin

C:\Users\Deepak\Ruby192\bin>ruby scope.rb
<internal:lib/rubygems/custom_require>:29:in `require': no such file to
load --
tk (LoadError)
        from <internal:lib/rubygems/custom_require>:29:in `require'
        from scope.rb:1:in `<main>'

When entering just "scope" or "scope.rb", I of course get a text file of
the code.  The problem is that the Ruby is installed as part of the Path
variable, yet I still get these errors.  The Path variable is as
follows:
"C:\Users\Deepak\Ruby192\bin;%CommonProgramFiles%\Microsoft
Shared\Windows Live".  Is there a problem with the Path syntax?  Any
help would be appreciated.  Thank you.

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