What is slug?
Slugs are compressed and pre-packaged copies of your application optimized for distribution to thedyno manager. When you
git push to Heroku, your code is received by the slug compiler which transforms your repository into a slug. Scaling an application then downloads and expands the slug to a dyno for execution.
What is this error about?
It means you code base is huge and compressing it should not exceed size 300 MB; Continue reading