我向heroku部署了一个应用程序，但是当我转到该链接时，我收到了一个应用程序错误。当我在控制台中访问heroku日志时，这就是我所看到的：
2015-05-11T21:35:28.450778+00:00 app[web.1]: npm ERR!
2015-05-11T21:35:28.451031+00:00 app[web.1]: npm ERR! Failed at the showtrackr@0.0.0 start script 'node ./bin/www'.
2015-05-11T21:35:28.458702+00:00 app[web.1]: npm ERR! Tell the author that this fails on your system:
2015-05-11T21:35:28.451298+00:00 app[web.1]: npm ERR! This is most likely a problem with the showtrackr package,
2015-05-11T21:35:28.470607+00:00 app[web.1]:
2015-05-11T21:35:28.448240+00:00 app[web.1]: npm ERR! Linux 3.13.0-49-generic
2015-05-11T21:35:28.471022+00:00 app[web.1]: npm ERR! Please include the following file with any support request:
2015-05-11T21:35:28.458465+00:00 app[web.1]: npm ERR! not with npm itself.
2015-05-11T21:35:28.458841+00:00 app[web.1]: npm ERR! node ./bin/www
2015-05-11T21:35:28.471756+00:00 app[web.1]: npm ERR! /app/npm-debug.log
2015-05-11T21:35:28.459009+00:00 app[web.1]: npm ERR! You can get their info via:
2015-05-11T21:35:28.459145+00:00 app[web.1]: npm ERR! npm owner ls showtrackr
2015-05-11T21:35:28.459299+00:00 app[web.1]: npm ERR! There is likely additional logging output above.
2015-05-11T21:35:29.488054+00:00 heroku[web.1]: State changed from starting to crashed
2015-05-11T21:35:29.489121+00:00 heroku[web.1]: State changed from crashed to starting
2015-05-11T21:35:29.467921+00:00 heroku[web.1]: Process exited with status 1
2015-05-11T21:35:33.804208+00:00 heroku[web.1]: Starting process with command `npm start`
2015-05-11T21:35:35.767544+00:00 app[web.1]: Recommending WEB_CONCURRENCY=1
2015-05-11T21:35:35.767452+00:00 app[web.1]: Detected 512 MB available memory, 512 MB limit per process (WEB_MEMORY)
2015-05-11T21:35:37.227415+00:00 app[web.1]: > node ./bin/www
如果有人可以提供帮助，那就太棒了。
答案 0 :(得分：1)
不知道为什么，但我跑了
npm install
并且回到了heroku，一切正常。