npm ERR! npm owner error triggered with H10 app crashed - node.js

Question

I am trying to execute the application but i am facing NPM errors in the log.What might be the reason.
2017-02-14T17:57:20.698084+00:00 app[web.1]: npm ERR! Or if that isn't
available, you can get their info via:
2017-02-14T17:57:20.697188+00:00 app[web.1]: npm ERR! not with npm
itself. 2017-02-14T17:57:20.697375+00:00 app[web.1]: npm ERR! Tell the
author that this fails on your system:
2017-02-14T17:57:20.697706+00:00 app[web.1]: npm ERR! You can get
information on how to open an issue for this project with:
2017-02-14T17:57:20.698436+00:00 app[web.1]: npm ERR! There is likely
additional logging output above. 2017-02-14T17:57:20.698248+00:00
app[web.1]: npm ERR! npm owner ls Sap-api-ai
2017-02-14T17:57:20.717695+00:00 app[web.1]: npm ERR! Please include
the following file with any support request:
2017-02-14T17:57:20.831148+00:00 heroku[web.1]: State changed from
starting to crashed 2017-02-14T17:57:20.777084+00:00 heroku[web.1]:
Process exited with status 1 2017-02-14T17:58:48.330160+00:00
heroku[router]: at=error code=H10 desc="App crashed" method=GET
path="/" host=sap-api-ai-google.herokuapp.com
request_id=db57d06b-4cd6-41f8-aaf6-6688e0603f97 fwd="49.206.119.184"
dyno= connect= service= status=503 bytes=
2017-02-14T17:58:49.862288+00:00 heroku[router]: at=error code=H10
desc="App crashed" method=GET path="/favicon.ico"
host=sap-api-ai-google.herokuapp.com
request_id=665fc337-8aec-46ec-914a-3e6b0990a2b5 fwd="49.206.119.184"
dyno= connect= service= status=503 bytes=

Answer 1

Hard to say without seeing your code, but if I had to guess you're binding a static port rather than letting Heroku set your port for you via the PORT environment variable.
If you have something like:
app.listen(3000, (e) => { console.log('Connected!'); });
Then you'll want to change out that port number for the variable:
app.listen(process.env.PORT || 3000, (e) => { console.log('Connected!'); });