flash-chat, chat_screen problem

[MdRubayat]

can anyone please help me with this problem?

[aswin-remesan]

I don't see an " _firestore " variable defined here.... that is the main issue here.
Also, I think you meant to use " firestore.collection{'messages'}.snapshots() " in line 107... just remove the underscore and try it again " _ "

Also, see line 14, that's how you've defined/declared firestore variable.

[MdRubayat]

Thanks all the problems are solved except for line 116 >>
"final messages = snapshot.data.documents.reversed;" it says
error: The getter 'documents' isn't defined for the type 'QuerySnapshot'. (undefined_getter at [flash_chat] lib/screens/chat_screen.dart:120)

[aswin-remesan]

try the same line with " s " removed from "documents"

" final messages = snapshot.data.document.reversed; "

[MdRubayat]

@aswin-remesan brother i tried but it didn't worked though

[aswin-remesan]

@aswin-remesan brother i tried but it didn't worked though

https://stackoverflow.com/questions/57584317/messages-on-flutter-chat-app-not-in-proper-order

See this... I think you are facing the same issue... They've found a solution
Go through it

[nagen1]

can anyone please help me with this problem?

as I see their are 2 things from your screenshot.
2 variables are not defined in Errors section and your trying to use them in Snapshot stream.

to solve the problem.

1. Define a variable like this. you can declare this variable as global or local to specific widget/chat_screen.dart file

final FirebaseFirestore _firestore = FirebaseFirestore.instance;
final FirebaseAuth _auth = FirebaseAuth.instance;

2. Use the same variable in snapshot section to stream the data in chat screen/message bubble.
   _firestore.collection('messages').snapshots()

once you defined the variable and have access to _firestore object. the IDE will give you all kinds off methods that object can project.
like so.. messages = snapshot.data.docs.reversed;

[MdRubayat]

@aswin-remesan brother i tried but it didn't worked though

https://stackoverflow.com/questions/57584317/messages-on-flutter-chat-app-not-in-proper-order

See this... I think you are facing the same issue... They've found a solution
Go through it

Thank you so much for helping me so throughly every time @aswin-remesan i deeply researched it and got the solution. This community is alive for people like you !

[MdRubayat]

Thank you brother @nagen1 really appreciate your kind concern.