There are multiple heroes that share the same tag within a subtree.

[fernando-s97]

Hi!

My Swiper list (EventsList) has 2 items, but 3 items appear in the widget tree. And as I'm using the Hero widget, I'm getting the following error How can I solve that?

In this case, the 1st and 3rd items are the same.

[realshovanshah]

I was having the same problem. This seems to be the occurring because the Swiper widget build the first item twice, at the top and the bottom of the stack. This can be seen here (the first item, 1, is built two times ):

This means that any widget at the top of the stack will have a duplicate widget thus all the property passed to that widget are also duplicated. (No matter how unique the data id)

What worked for me:

Defining a global id (say 'heroId') and incrementing it on every build:

We use this, 'heroId' as the hero tag by passing it on new when navigating to the target screen via the constructor:

Hope this helped you!