type 'Future<dynamic>' is not a subtype of type 'Stream<Object?>?'

Flutter issues

I was dealing with 

type 'Future<dynamic>' is not a subtype of type 'Stream<Object?>?'

I had no Future types in my app however I did have something like this:

  getQuestion(String id, String collectionName) async {
    //var collection = FirebaseFirestore.instance.collection(collectionName);
    // var querySnapshots = await collection.get();
    // for (var snapshot in querySnapshots.docs) {
    //   var documentID = snapshot.id;
    //   print('++++++++++++++++++++++++++');
    //   print(documentID); // <-- Document ID
    // }
    // final docsID = FirebaseFirestore.instance.collection(collectionName).doc();
    // print('++++++++++++++++++++++++++');
    // print(docsID);
    // print(FirebaseFirestore.instance.collection(collectionName).doc());
    return FirebaseFirestore.instance
        .collection(collectionName)
        .doc(id) //ID OF DOCUMENT
        .snapshots();
  }
}
I found that You cannot use async/await when returning from a build method (or a builder closure).

so the solution was to delate the async stament :D