Flutter web & Firebase : "Unexpected null value"

[vesperadlaw]

Hey there !

I code an App and a Website with Flutter and Firebase (both have same data base and similar design and widgets).

Here's my issue: a part of my code to display datas works perfectly on the App but not on the Website, it's return an error: Unexpected null value.

I searched everywhere, I did not find anything to fix it. If somebody have an idea why this is not working on Chrome localhost...

This is my code :

FutureBuilder<QuerySnapshot>( future: products.get(), builder: (context, snapshot) { if (snapshot.connectionState == ConnectionState.done) { return ListView( children: snapshot.data!.docs.map((document) { return Container( child: Column( children: [ Text('${document['Brand']}'), Text('${document['Name']}'), Text('${document['Price']}'), ], ), ); }).toList(), ); } else { return CircularProgressIndicator(); } } ),

This is my debug console :

The following TypeErrorImpl was thrown building DisplayProducts(dirty): Unexpected null value.
The relevant error-causing widget was DisplayProducts lib/…/builder/homepage.dart:76 When the exception was thrown, this >was the stack dart-sdk/lib/internal/js_dev_runtime/private/ddc_runtime/errors.dart 236:49 throw dart->sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/operations.dart 518:63 nullCheck >packages/mywebsite/widgets/displayproducts.dart 30:32 build packages/flutter/src/widgets/framework.dart 4648:28
build packages/flutter/src/widgets/framework.dart 4574:15
performRebuild ...

I think the error comes from "snapshot.data!.docs()" but I do not know how to fix it and I don't get why it's perfectly working on my App but not on my Website with Flutter web... Somebody have an idea to fix my issue ?
Sorry I'm new, I actually don't know how to put my code nicely...