ActionView::Template::Error (uninitialized constant I18n::RESERVED_KEYS)

Question

I am running a rails 3 app with ruby 1.9.3. Heroku gives me an error 500 with this message in heroku logs:

Started GET "/" for 90.3.47.58 at 2014-03-20 08:42:50 +0000 Completed 500 Internal Server Error in 176ms

<p><%= t('.title_html') %></p>

Rendered store/index.html.erb within layouts/application (96.3ms)

<p id="notice"><%= notice %></p>

ActionView::Template::Error (uninitialized constant I18n::RESERVED_KEYS):

The app works fine locally.The problem arises only in production deployment. Any idea ?

Answer 1

Looks like you may have to lock your I18n gem at 0.5.0 for now: https://github.com/svenfuchs/i18n/issues/233