Why can I not start the Vue UI after installing the Vue CLI?

Question

Using the following:

node 8.11.2
npm 6.3.0

I then try to install the Vue CLI ( @vue/cli@3.0.0 ):

npm i -g @vue/cli

but when I run the following command:

vue ui

I get the following error:

Error: Cannot find module 'core-js/modules/es7.object.entries'
    at Function.Module._resolveFilename (module.js:547:15)
    at Function.Module._load (module.js:474:25)
    at Module.require (module.js:596:17)
    at require (internal/module.js:11:18)
    at Object.<anonymous> (C:\Apps\caches\npm\node_modules\@vue\cli\node_modules\apollo-upload-server\lib\mi
ddleware.js:14:1)
    at Module._compile (module.js:652:30)
    at Object.Module._extensions..js (module.js:663:10)
    at Module.load (module.js:565:32)
    at tryModuleLoad (module.js:505:12)
    at Function.Module._load (module.js:497:3)

Answer 1

It turned out I had to install the core-js package explicitly.

npm i -g core-js

Not sure why this wasn't installed as a dependency though.

The issue has been reported HERE and has been fixed in v3.0.1 .