“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

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.