title: Coffeescript + Express.js : cannot call method 'sliced' of undefined
body: <p>I'm making my first app in express.js and coffeescript. The code is at:
  <a href="https://github.com/findjashua/contactlist" rel="nofollow">https://github.com/findjashua/contactlist</a></p>
  
  <p>When I try to run it, I get the following error:</p>
  
  <pre><code>/Users/jashua/local/lib/node_modules/coffee-script/lib/coffee-script/helpers.js:216
    codeLine = codeLine.slice(0, start) + colorize(codeLine.slice(start, end
                        ^
  TypeError: Cannot call method 'slice' of undefined
    at Object.exports.prettyErrorMessage (/Users/jashua/local/lib/node_modules/coffee-script/lib/coffee-script/helpers.js:216:27)
    at compileScript (/Users/jashua/local/lib/node_modules/coffee-script/lib/coffee-script/command.js:199:25)
    at /Users/jashua/local/lib/node_modules/coffee-script/lib/coffee-script/command.js:143:18
    at fs.js:266:14
    at Object.oncomplete (fs.js:107:15)
  </code></pre>
  
  <p>I'm assuming it's something to do with contacts.coffee, but can't think of anything. Any ideas?</p>