undefined method `task' error when using rake? v 0.9.0 broken.

When I attempted to do a migration recently, I received the following error:

rake aborted!

undefined method `task' for #<MyApp::Application:0x000001012d3be0>

It turns out that the new version of rake is broken, and it is automatically updated when you run bundle. Since that's the case, we need to roll back to v 0.8.7. I found some resources with different recommendations for fixes, but following is what worked for me:

First, we need to uninstall rake 0.9.0. In your terminal, type gem uninstall rake -v 0.9

Open your Gemfile. Add the following line gem 'rake', '~> 0.8.7' 
Save it.

Go back to your terminal and type bundle update rake.

Run your migration!