~/Documents/gerrit/mediawiki/core/extensions/WikibaseMediaInfo$ node -v
v10.21.0

~/Documents/gerrit/mediawiki/core/extensions/WikibaseMediaInfo$ npm -v
6.14.4

~/Documents/gerrit/mediawiki/core/extensions/WikibaseMediaInfo$ npm ci

> chromedriver@2.46.0 install /Users/z/Documents/gerrit/mediawiki/core/extensions/WikibaseMediaInfo/node_modules/chromedriver
> node install.js

Current existing ChromeDriver binary is unavailable, proceding with download and extraction.
Downloading from file:  https://chromedriver.storage.googleapis.com/2.46/chromedriver_mac64.zip
Saving to file: /var/folders/lp/_zdbscx92l14yr1q1nwjzslm0000gn/T/2.46/chromedriver/chromedriver_mac64.zip
Received 781K...
Received 1568K...
Received 2352K...
Received 3136K...
Received 3920K...
Received 4704K...
Received 5488K...
Received 6272K...
Received 6891K total.
Extracting zip contents
Copying to target path /Users/z/Documents/gerrit/mediawiki/core/extensions/WikibaseMediaInfo/node_modules/chromedriver/lib/chromedriver
Fixing file permissions
Done. ChromeDriver binary available at /Users/z/Documents/gerrit/mediawiki/core/extensions/WikibaseMediaInfo/node_modules/chromedriver/lib/chromedriver/chromedriver

> core-js@2.6.11 postinstall /Users/z/Documents/gerrit/mediawiki/core/extensions/WikibaseMediaInfo/node_modules/core-js
> node -e "try{require('./postinstall')}catch(e){}"

Thank you for using core-js ( https://github.com/zloirock/core-js ) for polyfilling JavaScript standard library!

The project needs your help! Please consider supporting of core-js on Open Collective or Patreon: 
> https://opencollective.com/core-js 
> https://www.patreon.com/zloirock 

Also, the author of core-js ( https://github.com/zloirock ) is looking for a good job -)


> fibers@3.1.1 install /Users/z/Documents/gerrit/mediawiki/core/extensions/WikibaseMediaInfo/node_modules/fibers
> node build.js || nodejs build.js

`darwin-x64-64` exists; testing
Binary is fine; exiting
npm ERR! Cannot read property 'length' of undefined

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/z/.npm/_logs/2020-06-09T16_30_50_125Z-debug.log

~/Documents/gerrit/mediawiki/core/extensions/WikibaseMediaInfo$ rm package-lock.json 

~/Documents/gerrit/mediawiki/core/extensions/WikibaseMediaInfo$ npm i

> undefined install /Users/z/Documents/gerrit/mediawiki/core/extensions/WikibaseMediaInfo
> rm -rf node_modules/mediawiki && git clone -q https://gerrit.wikimedia.org/r/mediawiki/core node_modules/mediawiki

...

{
	"private": true,
	"scripts": {
...
		"install": "rm -rf node_modules/mediawiki && git clone -q https://gerrit.wikimedia.org/r/mediawiki/core node_modules/mediawiki"
	},
...