Deploying Cloud Functions for Firebase locally. admin.initializeApp(functions.config()) - firebase

Question

When I tried to deploy a function on my local firebase emulator, I got this error
ERROR: Function load error: Code could not be loaded.
ERROR: Does the file exists? Is there a syntax error in your code?
ERROR: Detailed stack trace: /home/krishna/whozoo-firebase-web/functions/node_modules/firebase-functions/lib/config.js:51
throw new Error('Firebase config variables are not available. ' +
Error: Firebase config variables are not available. Please use the latest version of the Firebase CLI to deploy this function.
at init (/home/krishna/whozoo-firebase-web/functions/node_modules/firebase-functions/lib/config.js:51:15)
at Object.config (/home/krishna/whozoo-firebase-web/functions/node_modules/firebase-functions/lib/config.js:29:9)
at Object.<anonymous> (/home/krishna/whozoo-firebase-web/functions/index.js:7:31)
at Module._compile (module.js:570:32)
at Object.Module._extensions..js (module.js:579:10)
at Module.load (module.js:487:32)
at tryModuleLoad (module.js:446:12)
at Function.Module._load (module.js:438:3)
at Module.require (module.js:497:17)
at require (internal/module.js:20:19)
ERROR: Error: Failed to deploy function.
at exec (/usr/local/lib/node_modules/#google-cloud/functions-emulator/src/cli/controller.js:135:18)
at ChildProcess.exithandler (child_process.js:213:5)
at emitTwo (events.js:106:13)
at ChildProcess.emit (events.js:191:7)
at maybeClose (internal/child_process.js:877:16)
at Process.ChildProcess._handle.onexit (internal/child_process.js:226:5)
Then I retried deploying after removing this particular line of code
admin.initializeApp(functions.config())
My function is deployed successfully but when I hit the endpoint, I end up with this message
{"code": "app/no-app","message": "The default Firebase app does not exist. Make sure you call initializeApp() before using any of the Firebase services."}
How can I solve this error?
EDIT
'use strict';
const admin = require('firebase-admin');
const functions = require('firebase-functions');
const register = require('./register');
admin.initializeApp(functions.config());
exports.register = functions.https.onRequest(register.registerHandler);
register.js
'use strict';
const functions = require('firebase-functions');
const admin = require('firebase-admin');
const cors = require('cors')
cors(req, res, () => {
let requestBody = req.body;
admin.auth().createUser({
'email': requestBody.email,
'emailVerified': false,
'password': requestBody.password,
'displayName': requestBody.firstName + '
' +requestBody.lastName
});
});
This is the part of register.js that I believe causes the problem. The rest of the register.js contains the response message.

Answer 1

Instead of this:
admin.initializeApp(functions.config());
Try this:
admin.initializeApp();
Also, put that line before you require your register module.