App crashes immediately

[lpetre]

The following is the tail of heroku logs for my vulcan app as I restart it:

2012-03-21T18:42:16+00:00 heroku[web.1]: State changed from crashed to created 2012-03-21T18:42:16+00:00 heroku[web.1]: State changed from created to starting 2012-03-21T18:42:19+00:00 heroku[web.1]: Starting process with commandnode web.js 2012-03-21T18:42:19+00:00 app[web.1]: listening on port 23990 2012-03-21T18:42:19+00:00 app[web.1]: 2012-03-21T18:42:19+00:00 app[web.1]: /app/node_modules/cradle/lib/cradle.js:198 2012-03-21T18:42:19+00:00 app[web.1]: return callback(body); 2012-03-21T18:42:19+00:00 app[web.1]: ^ 2012-03-21T18:42:19+00:00 app[web.1]: TypeError: undefined is not a function 2012-03-21T18:42:19+00:00 app[web.1]: at Request._callback (/app/node_modules/cradle/lib/cradle.js:198:20) 2012-03-21T18:42:19+00:00 app[web.1]: at Request.callback (/app/node_modules/cradle/node_modules/request/main.js:119:22) 2012-03-21T18:42:19+00:00 app[web.1]: at Request.<anonymous> (/app/node_modules/cradle/node_modules/request/main.js:525:16) 2012-03-21T18:42:19+00:00 app[web.1]: at Request.emit (events.js:67:17) 2012-03-21T18:42:19+00:00 app[web.1]: at IncomingMessage.<anonymous> (/app/node_modules/cradle/node_modules/request/main.js:484:14) 2012-03-21T18:42:19+00:00 app[web.1]: at IncomingMessage.emit (events.js:88:20) 2012-03-21T18:42:19+00:00 app[web.1]: at HTTPParser.onMessageComplete (http.js:137:23) 2012-03-21T18:42:19+00:00 app[web.1]: at Socket.ondata (http.js:1150:24) 2012-03-21T18:42:19+00:00 app[web.1]: at TCP.onread (net.js:354:27) 2012-03-21T18:42:20+00:00 heroku[web.1]: Process exited with status 1 2012-03-21T18:42:20+00:00 heroku[web.1]: State changed from starting to crashed