crypto-js  use   version  @4.0.0
My project is reactnative,I'm just do...
- 
npm install —-save crypto-js
 
- 
import MD5 from 'crypto-js/md5'
 
And then,Is an error,The following information:
error: bundling failed: Error: Unable to resolve module crypto from node_modules/crypto-js/core.js: crypto could not be found within the project.
Please tell me what I should do,,Thank you very mucha