Ionic: Error received when running Ionic cordova build ios

Ionic Framework ionic-v3
12

I tried to remove that and now I get

{ Error: Cannot find module 'inquirer'
    at Function.Module._resolveFilename (module.js:470:15)
    at Function.Module._load (module.js:418:25)
    at Module.require (module.js:498:17)
    at require (internal/module.js:20:19)
    at /Users/justinfrevert/Desktop/AceAdz-App/app-copy/node_modules/ionic/node_modules/@ionic/cli-utils/index.js:131:80 code: 'MODULE_NOT_FOUND' }

When I run ionic cordova build ios or any ionic command.
I am thinking that I will try the instructions in Ionic cli 3.10.3 - Error: Cannot find module 'inquirer’