Firestore rules Error Message

Resolved

Hi

I have developed a small application that displays a list of projects.

Users create their accounts, and everything is stored in a Firestore database. Then, they can create projects, and that data is also stored in the Firestore database.

Until now, no problem. With a querry collection, the project appears in the listview.

However, when another "user" creates an account, he can see projects of the FIRST user in the listview, and I am unable to change the Firestore rules to prevent this.

This is my rules:

In firebase, everything seems good

How can I do ?

When I try to change "ProjectList" collection, from "Everyone" to "Tagged users", I have the following error messeage.

I tried "tagged users" "authantifaced users"... and nothing is working.

I am so confused.

Thanks a lot for helping.

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