Firebase : Can't convert object of type java.lang.String to type com.example.g.Model.Cart

Question

I had error that said

com.google.firebase.database.DatabaseException: Can\'t convert object of type java.lang.String to type com.example.g.Model.Cart

Answer 1

From your code it looks like you are iterating a layer too deep in your structure. Easy Fix: Replace

for (DataSnapshot ds : dataSnapshot.getChildren()) {
    for (DataSnapshot cart : ds.getChildren()) {
         CartList.add(cart.getValue(Cart.class));
    }
}

with

for (DataSnapshot cart : dataSnapshot.getChildren()) {
     CartList.add(cart.getValue(Cart.class));
}