heroku 出现的npm ERR! 「There is likely additional logging outpu

ERR log如下：

2017-03-07T04:36:25.176632+00:00 app[web.1]: npm ERR!     node app.js2017-03-07T04:36:25.176770+00:00 app[web.1]: npm ERR! You can get information on how to open an issue for this project with:2017-03-07T04:36:25.176910+00:00 app[web.1]: npm ERR!     npm bugs skype-bot2017-03-07T04:36:25.177042+00:00 app[web.1]: npm ERR! Or if that isn't available, you can get their info via:2017-03-07T04:36:25.177178+00:00 app[web.1]: npm ERR!     npm owner ls skype-bot2017-03-07T04:36:25.177312+00:00 app[web.1]: npm ERR! There is likely additional logging output above.2017-03-07T04:36:25.181342+00:00 app[web.1]: 2017-03-07T04:36:25.181742+00:00 app[web.1]: npm ERR! Please include the following file with any support request:2017-03-07T04:36:25.181858+00:00 app[web.1]: npm ERR!     /app/npm-debug.log2017-03-07T04:36:25.263538+00:00 heroku[web.1]: Process exited with status 12017-03-07T04:36:25.258542+00:00 heroku[web.1]: State changed from starting to crashed

状况大概是我在heroku的deploy中，断掉app在dropbox的连结后，又重新连结，之后，无论怎样删除资料夹，重连都无效。

处理方式：直接新建一个app，连结dropbox。