InstantRails script/runner error

Hi folks ^^,

Ok I need some help here. I'm trying to create a script to automatically send Newsletters every day. The script is ready, but as I never used ruby script/runner I just wanted to make some test before. So I created the following script file in my "app" folder named "newsletter_script.rb" and with the following dumb code:

class NewsletterScript   printf "\nThat's it!" end

Now when I'm executing the script command "ruby script/runner /app/ newsletter_script.rb" I got the following error: C:/InstantRails-2.0/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/ commands/runner.rb:47: (eval):1: compile error (SyntaxError) (eval):1: unknown regexp options - wlttr (eval):1: syntax error, unexpected tIDENTIFIER, expecting $end /app/newsletter_script.rb                       ^ from C:/InstantRails-2.0/ruby/lib/ruby/ site_ruby/1.8/rub ygems/custom_require.rb:27:in `eval'         from C:/InstantRails-2.0/ruby/lib/ruby/gems/1.8/gems/ rails-2.0.2/lib/com mands/runner.rb:47         from C:/InstantRails-2.0/ruby/lib/ruby/site_ruby/1.8/rubygems/ custom_req uire.rb:27:in `gem_original_require'         from C:/InstantRails-2.0/ruby/lib/ruby/site_ruby/1.8/rubygems/ custom_req uire.rb:27:in `require'         from script/runner:3

Looked on internet and didn't find any help for this unknow regexp error (I guess did something wrong but what?!!)...

If anyone as an idea well thanks in advance for the help :wink:

PD: If the message is not quite clear just let me know, I'm french and my english isn't that good :slight_smile: