Ruby on Rails在UTF-8中的无效字节序列

Question

I run my ruby app in development on my webserver and everything works fine. As soon as I deploy it to the production webserver, whichs runs with passenger I get the following error:

I, [2017-07-27T13:15:14.594740 #26105]  INFO -- : [3cbea21c-5d64-41ba-ac9e-69887cc9ebef] Started GET "/" for 92.50.69.170 at 2017-07-27 13:15:14 +0200

I, [2017-07-27T13:15:14.597422 #26105]  INFO -- : [3cbea21c-5d64-41ba-ac9e-69887cc9ebef] Processing by NewsController#index as HTML

I, [2017-07-27T13:15:14.605119 #26105]  INFO -- : [3cbea21c-5d64-41ba-ac9e-69887cc9ebef]   Rendering news/index.html.erb within layouts/application

I, [2017-07-27T13:15:14.606419 #26105]  INFO -- : [3cbea21c-5d64-41ba-ac9e-69887cc9ebef]   Rendered news/index.html.erb within layouts/application (1.0ms)

> I, [2017-07-27T13:15:14.650500 #26105]  INFO -- : [3cbea21c-5d64-41ba-ac9e-69887cc9ebef] Completed 500 Internal Server Error in 53ms (ActiveRecord: 0.0ms)

F, [2017-07-27T13:15:14.652101 #26105] FATAL -- : [3cbea21c-5d64-41ba-ac9e-69887cc9ebef]   

F, [2017-07-27T13:15:14.652170 #26105] FATAL -- : [3cbea21c-5d64-41ba-ac9e-69887cc9ebef] ActionView::Template::Error (invalid byte sequence in UTF-8):

F, [2017-07-27T13:15:14.652565 #26105] FATAL -- : [3cbea21c-5d64-41ba-ac9e-69887cc9ebef]     15: 
[3cbea21c-5d64-41ba-ac9e-69887cc9ebef]     16: 
[3cbea21c-5d64-41ba-ac9e-69887cc9ebef]     17: 
[3cbea21c-5d64-41ba-ac9e-69887cc9ebef]     18:   <%= stylesheet_link_tag    'application', media: 'all', "data-turbolinks-track" => true %>
[3cbea21c-5d64-41ba-ac9e-69887cc9ebef]     19: 
[3cbea21c-5d64-41ba-ac9e-69887cc9ebef]     20:   <%= javascript_include_tag 'application', "data-turbolinks-track" => true %>
[3cbea21c-5d64-41ba-ac9e-69887cc9ebef]     21: 

F, [2017-07-27T13:15:14.652600 #26105] FATAL -- : [3cbea21c-5d64-41ba-ac9e-69887cc9ebef]   

F, [2017-07-27T13:15:14.652633 #26105] FATAL -- : [3cbea21c-5d64-41ba-ac9e-69887cc9ebef] app/views/layouts/application.html.erb:18:in `_app_views_layouts_application_html_erb__1631551722207135725_70167078217020'

All I've changed is this in the enviroment.rb file:

Encoding.default_internal = 'utf-8'
Encoding.default_external = 'utf-8'

I use Ruby 2.3.1(p112) and Rails 5.0.

Could you please tell me whats wrong here?

Best regards

Answer 1

Have a look at this answer, it will help you understand how you can debug using a Ruby debugger and you will be able to understand what is your issue easier.

How to debug your code

From the looks of it you have some code in your view that is not UTF-8 compatible, probably from your database?