Ineffective mark-compacts near heap limit Allocation Angular 8 - JavaScript heap out of memory

This works for me:

I have updated to the latest Angular like so: ng update @angular/cli@^8 @angular/core@^8

Then

package.json

"scripts": {
    "ng-high-memory": "node --max_old_space_size=8000 ./node_modules/@angular/cli/bin/ng build --configuration=prod",
}

After that:

npm run ng-high-memory

Url: JavaScript heap out of memory

Upgrade the node js version to v12.