Fix the Error “Heroku H10-App Crashed Error: at=error code=H10 desc=”App crashed” method=GET path=”/” host”

Node.js is a cross-platform and open-source runtime environment for JavaScript, which allows programmers to run and execute JavaScript code and programs outside a web browser. This is basically used to develop scalable network applications. Moreover, it is simpler to have the code run on different operating systems. On the hand, Heroku is a cloud platform also known as PaaS (platform as a service). It allows programmers and developers to develop, operate, and run applications in the cloud. It has become easier for developers to deploy node.js applications. When you are working with Heroku, you may end up with the error “Heroku H10-App Crashed Error: at=error code=H10 desc=”App crashed” method=GET path=”/” host”.

The first reaction when you see the error warning is ‘OHH, NO’, it happens to all of us. Don’t worry as we are here to help you solve the error. Go ahead with the post to learn the tricks to say BYE-BYE to the error. But first, have a look at how you get the error warning

How the error shows up

The application you have developed with Heroku causes the error.  Have a look at the error you get in the Heroku logs

Error: Cannot find module '/wiki/logs'
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:636:15)
at Function.Module._load (internal/modules/cjs/loader.js:562:25)
at Function.Module.runMain (internal/modules/cjs/loader.js:831:12)
at startup (internal/bootstrap/node.js:283:19)
at bootstrapNodeJSCore (internal/bootstrap/node.js:622:3)

2021-05-09T11:26:39.184283+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=sws-wiki.herokuapp.com request_id=4a1aba64-a4c0-4a1e-8bb4-231d3cc51bbb fwd="95.180.36.112" dyno= connect= service= status=503 bytes= protocol=https
2021-05-09T11:26:39.985839+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=sws-wiki.herokuapp.com request_id=44a1adc6-1f14-4434-b8f7-514216845fdd fwd="95.180.36.112" dyno= connect= service= status=503 bytes= protocol=https

Now that you have seen how the error occurs, go ahead with the next section to check the solutions

How To Solve the Error “Heroku H10-App Crashed Error: at=error code=H10 desc=”App crashed” method=GET path=”/” host”

We have some simple yet really effective solutions to handle the exception.

Solution 1 – Setting a Port

To fix the error exception, setting up a port is really helpful. The reason for crashing the application is that setting a port is a tedious task to do and with utmost vigilance. While the port is dynamically set by Heroku that you can access using process.env.PORT. Have a look at the code to access it

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

Solution 2 – Restart Heroku

As soon as you get the error warning, the first thing that you need to try is to just restart Heroku. Sometimes only restarting resolves the error.

Solution 3 – Delete files

If the error persists, you need to try to delete the project files as it can do wonders. Crashing the application can be fixed.

Conclusion

In this post, we shed light on the solutions to fix the error “Heroku H10-App Crashed Error: at=error code=H10 desc=”App crashed” method=GET path=”/” host”. You can try the solutions till you fix the error.

I hope you find it helpful! Don’t forget to drop a message if you need any assistance!