Firestore composite Indexing not working: The query requires an index - firebase

Question

UserCollection/{id}/PlayerCollection/{id}
In the last document, there are number of fields
active: true or false
dateInMillies : 123456789
return _firestore
.collection('UserCollection')
.document(userID)
.collection("PlayerCollection")
.orderBy('dateInMillis', descending: true)
.where('active', isEqualTo: true)
.snapshots();
this block of code through an exception:
failed: Status{code=FAILED_PRECONDITION, description=The query requires an index. You can create it here: link to fix it
but the link is broken, so i must do it manually!
so, i went to indexes tab, and created a new composite index
collectionID : PlayerCollection
Fields Indexed: dateInMillis : Descending , active : Ascending
but also didn`t work!

Answer 1

I have an alternative answer.
Make sure when you open the link that you don't include any random characters at the end. I opened the link from vscode's terminal, and it actually had three links that were available to open, but two of them had a trailing comma, which opened a white screen in the Firebase console.

Answer 2

The problem is solved D:
I contacted Firebase support about the broken URL and here is the solution:
It seems that you might have another account linked on your browser.
Probably gmail, if that is the case, please verify that your current
session corresponds with the selected project, or simply try logout /
login with the account that owns the project. You can also try it from
an incognito window
And the generated link solved my issue.

Answer 3

In my case,
I found that the fields indexed should be exactly the same in the query, no more, no less.
If you want to make a new query with different fields (but still in the same collection), you can create new composite indexing with the same collection name.
I hope this will solve the problem.