snapshot returns always empty data in StreamBuilder flutter

Question

So, I'm facing this problem: the ' snapshot ' doesn't get any data from Firestore in StreamBuilder in Flutter.$

Here is the code:

StreamBuilder<Driver>(
  initialData: null,
  stream: DatabaseServices(uid: driver.uid).driverData,
  builder: (streamContext, snapshot) {
    print(driver.uid);
    if (snapshot.hasData) {
      Driver currentDriver = snapshot.data;
      print(currentDriver.fullName);
      print(currentDriver.email);
    } else {
      print('no data');
    }
  }
)

Note: stream: DatabaseServices(uid: driver.uid).driverData -> driver here works fine on top of the whole code and gets the driver data such as uid.

And this code always returns ' no data '.

The weird thing here is that I'm using the same code (with another kind of user -> Client ) in another screen, and it works normally , and it gets the data properly .

And in Firestore, I have 2 collections, Driver and Clients , almost the same attributes.

It even has a SubCollection for both collections and it called ' Notification ', and I'm using a StreamBuilder to show the notifications for both Client and Driver and it works normally .

Answer 1

Problem solved, the problem was in some attribute that I called it with the wrong name that used in the other collection (Client), I forgot to change it.