Error when trying to do anything with Heroku. Rails 3.1

Question

I have been trying to use heroku with my rails app. I've gem install heroku and listed it in my gemfile, but everytime I try to do anything with it I keep getting this error...

    /Users/alex/.rvm/gems/ruby-1.9.2-p180/gems/mime-types-1.17.1/lib/mime/types.rb:755:in  `split': invalid byte sequence in US-ASCII (ArgumentError)
from /Users/alex/.rvm/gems/ruby-1.9.2-p180/gems/mime-types-1.17.1/lib/mime/types.rb:755:in `load_from_file'
from /Users/alex/.rvm/gems/ruby-1.9.2-p180/gems/mime-types-1.17.1/lib/mime/types.rb:838:in `block in <class:Types>'
from /Users/alex/.rvm/gems/ruby-1.9.2-p180/gems/mime-types-1.17.1/lib/mime/types.rb:838:in `each'
from /Users/alex/.rvm/gems/ruby-1.9.2-p180/gems/mime-types-1.17.1/lib/mime/types.rb:838:in `<class:Types>'
from /Users/alex/.rvm/gems/ruby-1.9.2-p180/gems/mime-types-1.17.1/lib/mime/types.rb:578:in `<module:MIME>'
from /Users/alex/.rvm/gems/ruby-1.9.2-p180/gems/mime-types-1.17.1/lib/mime/types.rb:4:in `<top (required)>'
from /Users/alex/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:54:in `require'
from /Users/alex/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:54:in `require'
from /Users/alex/.rvm/gems/ruby-1.9.2-p180/gems/rest-client-1.6.7/lib/restclient/request.rb:2:in `<top (required)>'
from /Users/alex/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:54:in `require'
from /Users/alex/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:54:in `require'
from /Users/alex/.rvm/gems/ruby-1.9.2-p180/gems/rest-client-1.6.7/lib/restclient.rb:13:in `<top (required)>'
from /Users/alex/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:54:in `require'
from /Users/alex/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:54:in `require'
from /Users/alex/.rvm/gems/ruby-1.9.2-p180/gems/rest-client-1.6.7/lib/rest_client.rb:2:in `<top (required)>'
from /Users/alex/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:54:in `require'
from /Users/alex/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:54:in `require'
from /Users/alex/.rvm/gems/ruby-1.9.2-p180/gems/heroku-2.11.0/lib/heroku/client.rb:2:in `<top (required)>'
from /Users/alex/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:54:in `require'
from /Users/alex/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:54:in `require'
from /Users/alex/.rvm/gems/ruby-1.9.2-p180/gems/heroku-2.11.0/lib/heroku.rb:6:in `<top (required)>'
from /Users/alex/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:54:in `require'
from /Users/alex/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:54:in `require'
from /Users/alex/.rvm/gems/ruby-1.9.2-p180/gems/heroku-2.11.0/bin/heroku:6:in `<top (required)>'
from /Users/alex/.rvm/gems/ruby-1.9.2-p180/bin/heroku:19:in `load'
from /Users/alex/.rvm/gems/ruby-1.9.2-p180/bin/heroku:19:in `<main>'

I'm new to rails so would appreciate help if anybody knows whats gone wrong. I've googled it but can't seem to find the same problem.

These are the list of gems I currently have installed incase that may be the cause:

*** LOCAL GEMS ***

actionmailer (3.1.1, 3.1.0)
actionpack (3.1.1, 3.1.0)
activemodel (3.1.1, 3.1.0)
activerecord (3.1.1, 3.1.0)
activeresource (3.1.1, 3.1.0)
activesupport (3.1.1, 3.1.0)
addressable (2.2.6)
ansi (1.3.0)
arel (2.2.1)
bcrypt-ruby (3.0.1, 3.0.0)
builder (3.0.0)
bundler (1.0.21, 1.0.18)
coffee-rails (3.1.1, 3.1.0)
coffee-script (2.2.0)
coffee-script-source (1.1.2)
daemons (1.1.4)
devise (1.4.9, 1.4.8)
erubis (2.7.0)
eventmachine (0.12.10)
execjs (1.2.9, 1.2.4)
heroku (2.11.0)
hike (1.2.1)
i18n (0.6.0)
jquery-rails (1.0.16, 1.0.14, 1.0.13)
json (1.6.1)
launchy (2.0.5)
mail (2.3.0)
mime-types (1.17.1, 1.16)
multi_json (1.0.3)
orm_adapter (0.0.5)
pg (0.11.0)
polyglot (0.3.2)
rack (1.3.5, 1.3.3, 1.3.2)
rack-cache (1.1, 1.0.3)
rack-mount (0.8.3)
rack-ssl (1.3.2)
rack-test (0.6.1)
rails (3.1.0)
railties (3.1.1, 3.1.0)
rake (0.9.2.2, 0.9.2)
rdoc (3.11, 3.9.4)
rest-client (1.6.7)
rubyzip (0.9.4)
sass (3.1.10, 3.1.7)
sass-rails (3.1.4, 3.1.2, 3.1.0)
sprockets (2.0.3, 2.0.0)
sqlite3 (1.3.4)
term-ansicolor (1.0.7)
thin (1.2.11)
thor (0.14.6)
tilt (1.3.3)
treetop (1.4.10)
turn (0.8.3, 0.8.2)
tzinfo (0.3.30, 0.3.29)
uglifier (1.0.4, 1.0.3, 1.0.2)
warden (1.0.6)

All the other gems work fine though. It's just the Heroku one that throws up an error.

Thanks.

Answer 1

This issue is fixed with mime-types 1.17.2, just released. I could not reproduce the issue on Mac OS X, but the problem was fairly easy to fix.

Answer 2

I think I had done a gem update + bundle update and that was what was messing it up.

I've uninstalled mime-types 1.17.1 and all seems to be working ok now. I had to uninstall it though. Even when I set the app to use version 1.16 it still came up with the same errors when I tried to do anything with Heroku.

Answer 3

You don't need to include Heroku into your gemfile.