Heroku deployment error H10 (App crashed)

causes of heroku h10 app crashed error and how to solve them
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I have a RoR app working on my local computer, but when I send it to heroku, it crashes. The error log gives an error H10 & says:

    2012-11-21T15:26:47+00:00 app[web.1]:   from /app/vendor/bundle/ruby/1.9.1/gems/newrelic_rpm-3.4.2/lib/new_relic/control/instance_methods.rb:95:in `start_agent'
    2012-11-21T15:26:48+00:00 heroku[web.1]: State changed from starting to crashed
    2012-11-21T15:26:48+00:00 heroku[web.1]: Process exited with status 1
    2012-11-21T15:26:59+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path=/ host=xxx.herokuapp.com fwd= dyno= queue= wait= connect= service= status=503 bytes=
    2012-11-21T15:27:00+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path=/favicon.ico host=xxx.herokuapp.com fwd= dyno= queue= wait= connect= service= status=503 bytes=
    2012-11-21T15:30:08+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path=/ host=xxx.herokuapp.com fwd= dyno= queue= wait= connect= service= status=503 bytes=
    2012-11-21T15:30:08+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path=/favicon.ico host=xxx.herokuapp.com fwd= dyno= queue= wait= connect= service= status=503 bytes=
    2012-11-21T15:30:59+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path=/favicon.ico host=xxx.herokuapp.com fwd= dyno= queue= wait= connect= service= status=503 bytes=
    2012-11-21T15:31:19+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path=/ host=xxx.herokuapp.com fwd= dyno= queue= wait= connect= service= status=503 bytes=
    2012-11-21T15:31:19+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path=/favicon.ico host=xxx.herokuapp.com fwd= dyno= queue= wait= connect= service= status=503 bytes=
    2012-11-21T15:32:08+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path=/favicon.ico host=xxx.herokuapp.com fwd= dyno= queue= wait= connect= service= status=503 bytes=
    2012-11-21T15:32:08+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path=/ host=xxx.herokuapp.com fwd= dyno= queue= wait= connect= service= status=503 bytes=

Edit:

2012-11-22T10:00:58+00:00 app[web.1]: 
2012-11-22T10:00:59+00:00 heroku[router]: at=info method=GET path=/favicon.ico host=xxx.herokuapp.com fwd= dyno=web.1 queue=0 wait=0ms connect=1ms service=26ms status=200 bytes=0

Has anyone had this before, and know what might be causing the problem? I cannot find a solution.

Thanks.


I ran into the same error above, app was crashing on heroku (running fine in dev) but error logs on heroku were not revealing any clues. I read other answers on this page and broke out in a sweat after seeing "rebuilding the app." I figured maybe I could get in the heroku console and look around. I did and even the console crashed, but this time it told me why. It was some obscure variable I forgot to delete during a troubleshooting session hours earlier. I am not saying you will run into the same problem, but I found more info when I tried to go through the console. Hope this helps.

$ heroku run rails console

Node app on Heroku - getting “Application Error”, when I've deployed it I get an application error. tried to delete it and heroku[​router]: at=error code=H10 desc=“App crashed” method=GET  This article is focused on the Heroku H10-App crashed error code which is thrown when an application crashes on Heroku. This is as much as it goes. This is as much as it goes. It does not help us with the reason our app crashed and that's where this article comes in. Below are some causes of this error and I guarantee you that some of them would surprise you greatly!


I was having the same issue. Logs weren't giving me any clues either. So I scaled down and scaled back up the dynos. This solved the problem for me:

heroku ps:scale web=0

Waited a few seconds...

heroku ps:scale web=1

Heroku deployment error H10 (App crashed), I ran into the same error above, app was crashing on heroku (running fine in dev) but error logs on heroku were not revealing any clues. THIS SOLUTION IS FOR GO When you deploy an app through heroku, it does not allow you to specify the port number. In other words, you can not specify your web service's port number as 8000 or something else, heroku decides the port number in runtime.


$heroku run rails console 

This is the best option since it will give you an error in your terminal which will be much more detailed than the 'app crashed' error in your Heroku logs.

Deploying app on Heroku (code=H10 desc="App crashed") · Issue , I have three types of error. At first- Error R10 (Boot timeout ) -> Web process failed to bind to $PORT within 60 seconds of launch. Heroku R10  Dismiss Join GitHub today. GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.


$ heroku restart

helped me get my dyno running again. I'm new to Heroku but glad I know now.

Crashes on Heroku, error code H10 · Issue #1589 · parse , Just deployed to Heroku and I'm getting this crash error: 2016-04-22T01:31:​53.925057+00:00 heroku[router]: at=error code=H10 desc="App  When your app is crashed, out of resources, or misbehaving in some other way, Heroku serves an error page, which can be customized for each application.


this happened to me when I was listening on the wrong port

I changed my listen() to "process.env.PORT" so:

http.listen((process.env.PORT || 5000), function(){
  console.log('listening on *:5000');
});

instead of

http.listen(5000, function(){
  console.log('listening on *:5000');
});

Heroku Error Codes, H10 - App crashed; H11 - Backlog too deep; H12 - Request timeout; H13 Each type of error gets its own error code, with all HTTP errors starting slow boot times will make it harder to deploy your application and will make  An HTTP request took longer than 30 seconds to complete. In the example below, a Rails app takes 37 seconds to render the page; the HTTP router returns a 503 prior to Rails completing its request cycle, but the Rails process continues and the completion message shows after the router message.


My app crash when pushed on Heroku : Heroku, at=error code=H10 desc="App crashed" method=GET Hi, I'm a beginner when it comes to Heroku and web app deployment in general. I am trying to run my simple node app on Heroku. Here is the directory structure ├── app.js ├── assets ├── blog.html ├── index.html ├── node_modules └── package.json


Heroku server H10 code error in a Spring Boot project, I did the project deployment on heroku immediately typed the URL to see if it worked, heroku[router]: at=error code=H10 desc="App crashed" method=GET  Deploy the app to Heroku. We can easily deploy our Node.js app to Heroku by pushing the code to the remote repository that we created at the previous step. Heroku will automatically detects that this is a Node.js app and builds it accordingly. $ git push heroku master Enumerating objects: 16, done. Counting objects: 100% (16/16), done.


Deploying Dash - H10 error - Dash, to run it I get: 2019-11-02T19:13:35.901538+00:00 heroku[router]: at=error code=H10 desc=“App crashed” method=GET path="/" host=vit-d…