amplify-js: Error "crypto could not be found within the project." on React Native

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• I have searched for duplicate or closed issues and discussions.
• I have read the guide for submitting bug reports.
• I have done my best to include a minimal, self-contained set of instructions for consistently reproducing the issue.

JavaScript Framework

React Native

Amplify APIs

Authentication

Amplify Categories

auth

Environment information

# Put output below this line
  Binaries:
    Node: 14.16.1 - /usr/local/bin/node
    npm: 6.14.12 - /usr/local/bin/npm
    Watchman: 4.9.0 - /usr/local/bin/watchman
  npmPackages:
    …
    @react-native-async-storage/async-storage: ^1.15.4 => 1.15.4 
    @react-native-community/netinfo: ^6.0.0 => 6.0.0 
    amazon-cognito-identity-js: ^5.0.1 => 5.0.1 (5.0.0)
    aws-amplify: ^4.0.2 => 4.0.2 
   …
  npmGlobalPackages:
    npm: 6.14.12

Describe the bug

Error “crypto could not be found within the project.” shows up when running React Native app with aws-amplify v4.0.2. aws-amplify v4.0.1 came with an upgrade of crypto-js from v3.3.0 to v4.0.0 (see changes) but it seems this version is not compatible with React Native (docs, issue).

Expected behavior

React Native app runs without any error.

Reproduction steps

1. Install aws-amplify v4.0.2 in a React Native app along with its dependencies as per the docs (@react-native-async-storage/async-storage, @react-native-community/netinfo, amazon-cognito-identity-js )
2. Run the app in a debug environment
3. See the error:

error: Error: Unable to resolve module `crypto` from `node_modules/@aws-amplify/auth/node_modules/crypto-js/core.js`: crypto could not be found within the project.

If you are sure the module exists, try these steps:
 1. Clear watchman watches: watchman watch-del-all
 2. Delete node_modules: rm -rf node_modules and run yarn install
 3. Reset Metro's cache: yarn start --reset-cache
 4. Remove the cache: rm -rf /tmp/metro-*
    ...

Code Snippet

// Put your code below this line.

Log output

// Put your logs below this line

aws-exports.js

No response

Manual configuration

No response

Additional configuration

No response

Mobile Device

Android, iOS

Mobile Operating System

No response

Mobile Browser

No response

Mobile Browser Version

No response

Additional information and screenshots

No response