Psych.load doesn't work on Heroku

[ncri]

In my Rails 3.2.2 app

Psych.load('--- foo')  

works fine in my local (production) console. But in on Heroku (cedar stack, ruby 1.9.2) I get this error:

irb(main):001:0> Psych.load('--- foo') 
LoadError: no such file to load -- --- foo
    from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.2/lib/active_support/dependencies.rb:245:in `load'
    from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.2/lib/active_support/dependencies.rb:245:in `block in load'
    from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.2/lib/active_support/dependencies.rb:236:in `load_dependency'
    from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.2/lib/active_support/dependencies.rb:245:in `load'
    from (irb):1
    from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.2/lib/rails/commands/console.rb:47:in `start'
    from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.2/lib/rails/commands/console.rb:8:in `start'
    from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.2/lib/rails/commands.rb:41:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'

[tenderlove]

What version of Ruby are you running on your local machine?

[ncri]

ruby-1.9.2-p290-railsexpress [ x86_64 ], a patched ruby installed via rvm

[ncri]

Oh, and I don't have the psych gem installed. Ruby 1.9.2 comes with Psych, right? Or where is it coming from otherwise?

[ncri]

With ruby-1.9.3-p0 it works too (without the gem installed).

[tenderlove]

Ya, it's in 1.9.2. It seems like somehow you're doing a require on psych in development but not in production. I'm not sure where that might be happening though.

[ncri]

Okay, I was suspecting the localeapp gem as I found the error through that, but it doesn't have require 'psych' anywhere, neither does my rails app...

[tenderlove]

I'm guessing that some library code (possibly rails?) is doing it in development but not production. Can you try adding a require 'psych' to your application.rb?

[ncri]

See this issue: Locale/localeapp#27

[ncri]

Hm, require 'psych' doesn't work on Heroku, it gives me "LoadError: no such file to load -- psych" locally it works though...

[tenderlove]

Seems like they don't have it installed for Ruby 1.9.2. I think this should be fixed in localeapp. Checking for the Psych constant isn't the best way to detect if Psych has been loaded or not. I'll comment on that issue with how to fix.

[ncri]

Thanks, I guess we can close this then?

[ghost]

I am also getting same error of "LoadError: no such file to load -- psych" on heroku with ruby 1.9.2. Is there any way i can fix it?