c:\Ruby200-x64\devkit>rbtc_simple
C:/Ruby200-x64/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require
': cannot load such file -- bundler (LoadError)
        from C:/Ruby200-x64/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:5
5:in `require'
        from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/rbtc_arbitrage_simple-2.1.1
/lib/rbtc_arbitrage.rb:1:in `<top (required)>'
        from C:/Ruby200-x64/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:5
5:in `require'
        from C:/Ruby200-x64/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:5
5:in `require'
        from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/rbtc_arbitrage_simple-2.1.1
/bin/rbtc_simple:4:in `<top (required)>'
        from C:/Ruby200-x64/bin/rbtc_simple:23:in `load'
        from C:/Ruby200-x64/bin/rbtc_simple:23:in `<main>'