Followed the docs but I got the below error

[davidmontgom]

/angular-universal-firebase/functions/index.js:12
const functions = require('firebase-functions');
^
SyntaxError: Identifier 'functions' has already been declared
at Object.exports.runInThisContext (vm.js:76:16)
at Module._compile (module.js:545:28)
at Object.Module._extensions..js (module.js:582:10)
at Module.load (module.js:490:32)
at tryModuleLoad (module.js:449:12)
at Function.Module._load (module.js:441:3)
at Module.require (module.js:500:17)
at require (internal/module.js:20:19)
at /usr/local/lib/node_modules/firebase-tools/lib/triggerParser.js:18:11
at Object. (/usr/local/lib/node_modules/firebase-tools/lib/triggerParser.js:38:3)

[davidmontgom]

resolved it works