[firebase_firestore]: Type 'bool' is not a subtype of type 'Map<String, dynamic>?' in type cast about flutterfire

[russellwheatley]

@rabejarano - out of curiosity, have you tried a get() request to find a document which has a master_league property with the value true or false? It might be that it slipped into your database somehow which is why this exception is appearing.

[rabejarano]

At first I thought it could be something like that, a bad implementation. But if this were the case, the previous data called market_cap would present the problem.

On the other hand, I have a flow of an average of 20k users per month and for example in this month of May the error only occurred in 700 users. If it were a bad technical implementation it should happen to everyone :s.

The last thing and what seems even more strange to me is that I did the same implementation in a test, as you can see above and it works correctly.

Honestly, im very confused.

If you need me to share some specific information with you, I have no problem providing it to you.

Thank you so much for your help

[russellwheatley]

I don't know where that property is in the structure of your database, but maybe run a test to find a document in whatever collection it is in, to find a master_league property with a boolean value to see if it is there?

[rabejarano]

It is very strange because as I share the image above with the test I previously did, this error never happens to me. Everything works correctly for me.

In the image above the way I have the database structured is

collection/document/data

app_setup/features/master_league

The point is that if it were indeed poorly structured, all users should perceive this error, but this is not the case. only a few users have the error.

[russellwheatley]

In your screenshot, you're casting it to a map, but the exception is telling you it is a boolean.

If it isn't master_league, it might be something else in your database that is supposed to be a map but is a boolean. I can't help you on this without a reproduction I'm afraid.

[rabejarano]

But that's the problem, I don't know how to reproduce it. I don't understand how Firebase is recognizing a Map as a Boolean.

What else could be in my database? I can share with you whatever you need.

[russellwheatley]

I would add logging to the part where you parse the data, particularly where you are expecting a map. It looks like something in your database is a boolean when a map is expected. That is the what the exception is saying. If you can find out what the user was doing when the exception occurred, that would narrow it down as you could add logging to that specific area of your app.

[ricardobegar]

Thank you very much for your answer. I'm going to add tracking. You're very kind.

[google-oss-bot]

Hey @rabejarano. We need more information to resolve this issue but there hasn't been an update in 7 weekdays. I'm marking the issue as stale and if there are no new updates in the next 7 days I will close it automatically.

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