I am trying to upgrade to Ruby 2.1.2 from 1.9.3 for my Rails app.
The problem I am facing is that the app's UI styling and layout has been destroyed by the upgrade. I can only see a white page with the UI elements (text boxes, select boxes) minus any styling arranged one below the other.
My rails version is fixed at 3.1.3 and my jquery-rails gem version is fixed at 2.2.1. I have tried to upgrade the 'jquery-rails' gem to higher (letting bundler work out the version - it sets it to 3.1.0). I also tried installing jquery-ui-rails gem with the upgraded jquery-rails gem as per this answer and updated the assets accordingly. Neither worked.
What am I missing? What else should I be looking at? Google does not show anyone facing a similar situation.
Update:
I figured out which dependency causes the problem. It is activerecord. The Gemfile lists the following gems:
gem 'railties', '3.1.3'
gem 'rails', '3.1.3'
gem 'activerecord', "3.1.3.patched", :require => "active_record"
gem 'actionpack'
If I try to move up from ruby 1.9.3, bundler complains about the version of activerecord - even for ruby 2.0.0.
Bundler could not find compatible versions for gem "activerecord":
In Gemfile:
rails (= 3.1.3) ruby depends on
activerecord (= 3.1.3) ruby
activerecord (3.1.3.patched)
If I change the version of activerecord gem, my UI breaks. Anyone know why this happens? Or, can anyone suggest a workaround? Ideally I would like to move to ruby 2.1; if that's not possible, I would like to move to at least 2.0. There are some gems I would like to use which do not support ruby 1.9.x any more. However, I would have to stick to rails 3.x due to project dependencies.
