Module not found: Error: Can't resolve 'core-js/es6'

Question

I\'ve got a problem with my build process in relation to my React app.

I always get the following error:

Module not found: Error: Can\'t resolve \'co

Answer 1

Just change "target": "es2015" to "target": "es5" in your tsconfig.json.

Work for me with Angular 8.2.XX

Tested on IE11 and Edge