engines.node in package.json needs to be updated

[3cp]

The nodejs version in package.json needs to be updated.

"engines": {
  "node": ">=8.6"
},

Because lib/queue.js uses class field definition syntax which requires at least nodejs v12.

module.exports = class Queue {
  _queue = [];
  _executing = false;
  _jobRunner = null;

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes/Public_class_fields#browser_compatibility

Reported in aurelia/cli#1203

[3cp]

Or refactor the code to remove the usage of the new syntax, if enquirer does want to support outdated nodejs versions.