android - Time it takes for a project (Firebase and Cloud) to be completely deleted with its SHA1 key credentials?

Question

I deleted my project from Firebase console and from Google cloud console. After deleting the projects, when I am trying to connect Firebase in my Android app, I am getting this error

Firebase
                No clients were able to be added to your Firebase project for the following reasons:
                An app with this package name and SHA1 is already connected to a Google project. If you have used a Google API previously, please select that project in the Connect to an existing project list. 
                Client Package Name: com.myproject.firebaseandroid
                Client SHA1: [XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX]

Any help is appreciated. Please help me.

Answer 1

Waitting for answers