'Can't deploy React App on heroku, don't understand why?

Here's what Heroku says when I try to deploy:

Module not found: Error: Can't resolve 'sweetalert2' in '/tmp/build_477bb6c3/src/components/Funditron'

----> Build failed

   We're sorry this build is failing! You can troubleshoot common issues here:
   https://devcenter.heroku.com/articles/troubleshooting-node-deploys
   
   Some possible problems:
   
   - Node version not specified in package.json
     https://devcenter.heroku.com/articles/nodejs-support#specifying-a-node-js-version
   
   Love,
   Heroku

I love you too Heroku but what else do you want from me! :D



Solution 1:[1]

While I'm not against heroku, I'd strongly suggest netlify. I mean that what almost all react developers use. It's very simple to use, try it out ?

Sources

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Source: Stack Overflow

Solution Source
Solution 1 Samuel Lucas