How can I test the example by making several users?

[ji-seung-ryu]

Hi, i am new to flutter.
I wanted to test this project example(flutter_firebase_chat_core/example).
I was supposed to make a chatting simulation which needs at lease two users.
I woked in Android studio, and tried to make a number of users with using chrome, Edge, and simulator.
It didn't work.

Only thing I saw in usersPage is 'No users'.

How can I test the example(flutter_firebase_chat_core/example) by making several users?

[Ssiswent]

The same