Npm install `vue@latest` error user agent

Question

I wanted to try staging.vuejs https://staging.vuejs.org/guide/quick-start.html#with-build-tools and it said that I only need to install it with command npm init vue@latest but I got this error:

SPEC

Node: v12.13.0

@vue/cli: v4.5.15

Answer 1

The error is because your Node version simply doesn't know what ?? means.

The ?? is a null coalescing operator. Looking at the MDN docs for ?? , you can see at the bottom that support for it was only added in Node 14.0. You're using Node v12.13.

There is really no other solution than to upgrade. I advice you to upgrade to the latest LTS version, which as of this writing is 16.