heroku erro at=error code=H10 desc="App crashed" code example

Example 1: Heroku H10-App Crashed Error

Heroku H10-App Crashed Error

"https://dev.to/lawrence_eagles/causes-of-heroku-h10-app-crashed-error-and-how-to-solve-them-3jnl"

Example 2: at=error code=h10 desc="app crashed" method=get path="/" host

Found solution for me here: Heroku + node.js error (Web process failed to bind to $PORT within 60 seconds of launch)

In my case my app crashed because I was hard setting the PORT, instead of using the port that heroku dinamicaly sets, which can be accessed with process.env.PORT

app.listen(process.env.PORT || 3000, function(){
  console.log("Express server listening on port %d in %s mode", this.address().port, app.settings.env);
});