Some polyfills have been added but are not present in your dependencies.
Please run one of the following commands:
	npm install --save es-aggregate-error@^1.0.2 es-map@^1.0.4 es-set@^1.1.0
	yarn add es-aggregate-error@^1.0.2 es-map@^1.0.4 es-set@^1.1.0
