No implementation found for method getApplicationDocumentsDirectory on channel plugins.flutter.io/path_provider in the background service

[Teckinfor]

Hello,

I had a good time debugging but I can't figure out the source of the problem at all.
In my code I need to pass information from my UI to my service and vice versa, for that I use .json files which contain all the information I need.

The problem is that I can't use the getApplicationDocumentsDirectory function contained in a custom class in my service, even though I use the same class as in my UI. So the problem can't be the class.

A precision that may be important is that the getApplicationDocumentsDirectory function is called in my custom class and comes from the path_provider package which is quite common.

My error is this:

[ERROR:flutter/lib/ui/ui_dart_state.cc(209)] Unhandled Exception: MissingPluginException(No implementation found for method getApplicationDocumentsDirectory on channel plugins.flutter.io/path_provider)

Do you know why the service does not seem to take the package into account?
And if so, how do I fix it please?

Thanks in advance

[Teckinfor]

#138