Failed to register a ServiceWorker (Flutter)

I'm working on a Flutter Web App and today I got these errors:

A bad HTTP response code (404) was received when fetching the script.

Uncaught (in promise) TypeError: Failed to register a ServiceWorker for scope ('https://adrieldf.github.io/') with script ('https://adrieldf.github.io/flutter_service_worker.js'): A bad HTTP response code (404) was received when fetching the script.

The only thing "different" that I added to the code was a dependency for the Share library, but I don't think that that is the problem.

Here is the interesting thing, I've got the app hosted on Github Pages and after every commit I have a action that builds the web app. After the build, when I try to access it doesn't load and the errors appears. But building it and running it locally works normally.

Here is the source code if you want to check: https://github.com/Adrieldf/allthewidgets The website link is in the repo description.

Solution 1:

Looks, like you are trying to run the project from the project_root/web folder.

If you just start a webserver here (for example, by using python -m http.server 8088), the application will start and even will be working partially.

But compiled web app located in project_root/build/web. Try to run your webserver in that folder.