“rake aborted! stack level too deep” while deploying to Heroku

Question

My website used to be working and Heroku precompiled the assets and everything. Now, seemingly out of nowhere, I started to get this message on deploy:

Preparing         


        

Answer 1

For ruby 2.3.0 or lower versions are having the following line in application.rb file for Rails. But 2.4.0 or higher have implemented those as automated.

Bundler.require(*Rails.groups)

Changing the ruby version to 2.3.0 did the trick. This one saved my day.

Answer 2

upgrading to sass v3.2.12 did the trick for me

but overall, it looks like the issue is fixed on all current versions, just do a bundle update and you should be good.

Answer 3

I was truly desperate so I asked another question. Apparently this is caused by sass and downgrading to sass-rails v3.1.4 v3.2.5 will make it work.