firebase real-time database rules error

[Mera-balou]

I managed to compile apk, but when i want to add the rules below in firebase real-time database, i received an error :

{
"rules": {
".read": "auth != null",
".write": "auth != null"
}
}

Line 1: mismatched input '{' expecting {'function', 'import', 'service', 'rules_version'}

Do you have any idea how to fix this?
@niranjanimalka98 @M1Dr05

[RamyaArumugam186]

Hi in firebase account go to database and in Rules edit it..

[Mera-balou]

My bad, i was in Cloud Firestore database....
Changed to realtime database and is working.

Thanx!