'crypto' is imported by node_modules\crypto-js\core.js, but could not be resolved – treating it as an external dependency code example

Example: error: Error: Unable to resolve module `crypto` from `node_modules\crypto-js\core.js`: crypto could not be found within the project.

To make it work with React Native 0.63
Downgrade crypto-js version to 3.3
(only if you are using version > 4.0)