[chef-dev] knife ec2 create is not working

[< >]

After updating chef gems  in my chef server, when i ran knife ec2 instance.

at some point , it was not able to install ruby gem in my node machine.

./lib/rubygems/custom_require.rb:54: warning: parenthesize argument(s) for
future version
./lib/rubygems/custom_require.rb:57:in `require': undefined method `end_with?'
for "no such file to load -- Win32API":String (NoMethodError)
        from ./lib/rubygems/config_file.rb:55
        from ./lib/rubygems/custom_require.rb:36:in `gem_original_require'
        from ./lib/rubygems/custom_require.rb:36:in `require'
        from ./lib/rubygems/gem_runner.rb:8
        from ./lib/rubygems/custom_require.rb:36:in `gem_original_require'
        from ./lib/rubygems/custom_require.rb:36:in `require'
        from setup.rb:25

What would be the problem.

why knife boostrapping s not working in node and install correct version of
ruby / gems

Any thing i need to do my end. 

I am using 64 bit ec2 centos node and chef-server s in 32-bit ec2 centos
machine

Please help me to resolve it