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
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.