invalid byte sequence in US-ASCII : report the wrongly encoded file

[augnustin]

It took me hours to solve this error:

ArgumentError in HomeController#index
invalid byte sequence in US-ASCII

having no other information about where the error came from.

Can't ruby/rails report the filename when this issue arises?
(In my case, it was in one of the application helpers ...)
Or am I lacking of experience in Rails to debug this super quickly?

[pftg]

I think you use ruby 1.9.3. Please try to add # encoding: UTF-8 at the top of the file.

[augnustin]

Thanks for such quick reply.

Yes I use Ruby 1.9.3 and Rails 3.2

I actually fixed it already (I should have mentionned it in the . Here is the stackoverflow post refering the problem : http://stackoverflow.com/questions/18467786/rails-invalid-byte-sequence-in-us-ascii

But what I'm reporting here is that the error message should be more verbose, and mentionning the error's filename or even better line number.

What do you reckon ?

[rafaelfranca]

This is not a Rails error message, it is Ruby that is giving you this error. If you want a more verbose error message you should file a Ruby issue.

[augnustin]

Yup, ok thanks!

[rafaelfranca]

One question. If you have the application stopped and run the rails server will the application boot?

[augnustin]

Yes, it does boot.
Public files and assets are served.
But whichever controller called and it fails.

2013/8/27 Rafael Mendonça França notifications@github.com

One question. If you have the application stopped and run the rails server
will the application boot?

—
Reply to this email directly or view it on GitHubhttps://github.com//issues/12041#issuecomment-23350183
.

[rafaelfranca]

I see. If you try to boot the application in the production environment of even on the test environment I think it will not boot and maybe it will give you a better error message.

[augnustin]

Indeed :

/home/augustin/.rvm/gems/ruby-1.9.3-p448/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:251:in
`require': /home/augustin/Workspace/copass/app/helpers/groups_helper.rb:7:
invalid multibyte char (US-ASCII) (SyntaxError)
/home/augustin/Workspace/copass/app/helpers/groups_helper.rb:7: invalid
multibyte char (US-ASCII)
/home/augustin/Workspace/copass/app/helpers/groups_helper.rb:7: syntax
error, unexpected $end, expecting keyword_end
      haml_tag "€"

But who could dare trying in production what doesn't work in development?

[rafaelfranca]

In test you will get the same result, or even in development if you enable the eager loading.