Npm install `vue@latest` error user agent

Issue

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 :

error message

SPEC

Node : v12.13.0

@vue/cli : v4.5.15

Solution

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.

Answered By – Phillip

Answer Checked By – Mary Flores (AngularFixing Volunteer)

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