firebase.initializeApp(firebaseConfig); code example

Example 1: You're about to initialize a Firebase project in this directory: fgirebase

1) locate the firebase.json file in your /Users/username directory
2) delete that firebase.json file
3) Now run the firebase init command in your new project directory

Example 2: firebase functions config

firebase functions:config:set someservice.key="THE API KEY" someservice.id="THE CLIENT ID"