The method '[]' can't be unconditionally invoked because the receiver can be 'null', when fetching data from firebase

Asked Jul 27 '22 at 18:12

Active Jul 27 '22 at 18:16

Viewed 34 times

  DatabaseReference databaseRef= FirebaseDatabase.instance.ref().child("collecton-name");

I am to display data from firebase, and so when I fetch information like below, I get this error.

FirebaseAnimatedList(
            query:databaseRef,
            itemBuilder:(BuildContext context, DataSnapshot snapshot,
            Animation<double>animation, int index){
              var x=snapshot.value['title'];
              print(x);
        return ListTile(
      subtitle: Text(snapshot.value['title']),
      title:Text(snapshot.value['subtitle'])
      );
      },
        ),

This is the error for the title, subtitle, and the variable.

The method '[]' can't be unconditionally invoked because the receiver can be 'null'.

asked Jul 27 '22 at 18:12

Pratishtha S

Can you include what are you getting on print – Md. Yeasin Sheikh Jul 27 '22 at 18:26
This is the error I get on print too. – Pratishtha S Jul 27 '22 at 18:32
try to print `snapshot.value` – Md. Yeasin Sheikh Jul 27 '22 at 18:32
W/PersistentConnection(14441): pc_0 - Firebase Database connection was forcefully killed by the server. Will not attempt reconnect. Reason: Firebase error. Please ensure that you spelled the name of your Firebase correctly – Pratishtha S Jul 27 '22 at 18:41
This is the error, as for reference, I passed the collection-name – Pratishtha S Jul 27 '22 at 18:42
Does [this](https://stackoverflow.com/q/69060872/10157127) solve your issue? – Md. Yeasin Sheikh Jul 27 '22 at 18:43
Let us [continue this discussion in chat](https://chat.stackoverflow.com/rooms/246831/discussion-between-pratishtha-s-and-yeasin-sheikh). – Pratishtha S Jul 27 '22 at 18:46

The method '[]' can't be unconditionally invoked because the receiver can be 'null', when fetching data from firebase

0 Answers0