Error in the push Heroku, json and ruby ​​1.9.2

Question

I have a problem at the time of the push Heroku, follow the below error

-----> Gemfile detected, running Bundler version 1.0.7
   Unresolved dependencies          


        

Answer 1

my workaround is, adding this to top of Gemfile

if RUBY_VERSION =~ /1.9/
    Encoding.default_external = Encoding::UTF_8
    Encoding.default_internal = Encoding::UTF_8
end

ref: http://www.ruby-forum.com/topic/178706

Answer 2

According to this similar issue at github on another gem, looks like it is because of lack of declaration of encoding on the gemspec file

https://github.com/RubyMoney/money/pull/87

I checked json 1.5.3 and 1.5.4 source, they both have it.

So, probably another gems next to json, probably don't have that line.

you may want to find out that gems with command bundle install in the project root folder.