Getting a bignum too big to convert into `long' (RangeError) when running Bundle install on your server? Here is how I solved it with the help from evan on the bundler IRC channel

gistfile2.txt

/usr/local/lib/site_ruby/1.8/rubygems/requirement.rb:109:in `hash': bignum too big to convert into `long' (RangeError)
	from /usr/local/lib/site_ruby/1.8/rubygems/requirement.rb:109:in `hash'
	from /usr/local/lib/site_ruby/1.8/rubygems/specification.rb:1306:in `hash'
	from /usr/lib/ruby/1.8/open-uri.rb:32:in `inject'
	from /usr/local/lib/site_ruby/1.8/rubygems/specification.rb:1305:in `each'
	from /usr/local/lib/site_ruby/1.8/rubygems/specification.rb:1305:in `inject'
	from /usr/local/lib/site_ruby/1.8/rubygems/specification.rb:1305:in `hash'
	from /usr/lib/ruby/1.8/tsort.rb:181:in `include?'
	from /usr/lib/ruby/1.8/tsort.rb:181:in `each_strongly_connected_component'
	from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.14/lib/bundler/spec_set.rb:124:in `tsort_each_node'
	from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.14/lib/bundler/spec_set.rb:124:in `each'
	from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.14/lib/bundler/spec_set.rb:124:in `tsort_each_node'
	from /usr/lib/ruby/1.8/tsort.rb:180:in `each_strongly_connected_component'
	from /usr/lib/ruby/1.8/tsort.rb:148:in `tsort_each'
	from /usr/lib/ruby/1.8/tsort.rb:135:in `tsort'
	from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.14/lib/bundler/spec_set.rb:107:in `sorted'
	from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.14/lib/bundler/spec_set.rb:12:in `each'
	from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.14/lib/bundler/installer.rb:49:in `run'
	from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.14/lib/bundler/installer.rb:8:in `install'
	from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.14/lib/bundler/cli.rb:222:in `install'
	from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.14/lib/bundler/vendor/thor/task.rb:22:in `send'
	from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.14/lib/bundler/vendor/thor/task.rb:22:in `run'
	from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.14/lib/bundler/vendor/thor/invocation.rb:118:in `invoke_task'
	from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.14/lib/bundler/vendor/thor.rb:246:in `dispatch'
	from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.14/lib/bundler/vendor/thor/base.rb:389:in `start'
	from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.14/bin/bundle:13
	from /usr/bin/bundle:19:in `load'
	from /usr/bin/bundle:19

gistfile3.txt

The Solution:

Edit /usr/local/lib/site_ruby/1.8/rubygems/version.rb (your location may very)
Near line 217 you should see:
  def hash # :nodoc:
    @hash ||= segments.hash
  end

Remove the "@hash ||=" so your code should look like this:
  def hash # :nodoc:
    segments.hash
  end

Save the file.
Run your bundler install call again. It should NOT fail.
Now you can go back and re-enable the caching of @hash
Edit /usr/local/lib/site_ruby/1.8/rubygems/version.rb around line 217 and put back:
  def hash # :nodoc:
    @hash ||= segments.hash
  end

Versions

ruby -v
ruby 1.8.7 (2010-12-23 patchlevel 330) [i686-linux]

gem -v
1.8.5

bundle -v
Bundler version 1.0.14

It seems error comes back with time. Leaving out the @hash ||= will make it continue to work. However this does make installing gems a bit longer and uses a bit more CPU.

See http://revision-zero.org/history-of-a-bug for an alternative solution and discussion of the bug.

Thanks, I have read that before and maybe it was a bad version of Ruby. However someone help me figure out that it was because I had about 3 different versions of ruby installed (not using RVM at all). I just had to start a fresh server and installed RVM and used it to install versions of ruby. All is well now