I just setup the open source chef server on an Ubuntu 12.04 EC2 instance, I've setup my webui and am able to get responses from my knife commands

ie: knife node list, knife client list, knife user list, etc...

I'm able to update roles, databags, environments, etc...

but I cannot upload any cookbooks. I'm running my workstation on Mac OSX.

I keep getting this output at the end of my command knife cookbook upload -VV curl. Doesn't matter what cookbook I upload, or if I upload them all - I keep getting the same response

DEBUG: Chef::HTTP calling Chef::HTTP::ValidateContentLength#handle_response
DEBUG: Chef::HTTP calling Chef::HTTP::RemoteRequestID#handle_response
DEBUG: Chef::HTTP calling Chef::HTTP::Authenticator#handle_response
DEBUG: Chef::HTTP calling Chef::HTTP::Decompressor#handle_response
DEBUG: Chef::HTTP calling Chef::HTTP::CookieManager#handle_response
DEBUG: Chef::HTTP calling Chef::HTTP::JSONToModelOutput#handle_response 
/usr/local/lib/ruby/gems/2.1.0/gems/chef-12.0.0.alpha.1/lib/chef/http/json_output.rb:51:in `handle_response': undefined method `chomp' for nil:NilClass (NoMethodError)
    from /usr/local/lib/ruby/gems/2.1.0/gems/chef-12.0.0.alpha.1/lib/chef/http.rb:229:in `block in apply_response_middleware'
    from /usr/local/lib/ruby/gems/2.1.0/gems/chef-12.0.0.alpha.1/lib/chef/http.rb:227:in `each'
    from /usr/local/lib/ruby/gems/2.1.0/gems/chef-12.0.0.alpha.1/lib/chef/http.rb:227:in `inject'
    from /usr/local/lib/ruby/gems/2.1.0/gems/chef-12.0.0.alpha.1/lib/chef/http.rb:227:in `apply_response_middleware'
    from /usr/local/lib/ruby/gems/2.1.0/gems/chef-12.0.0.alpha.1/lib/chef/http.rb:144:in `request'
    from /usr/local/lib/ruby/gems/2.1.0/gems/chef-12.0.0.alpha.1/lib/chef/http.rb:118:in `put'
    from /usr/local/lib/ruby/gems/2.1.0/gems/chef-12.0.0.alpha.1/lib/chef/cookbook_uploader.rb:123:in `block in uploader_function_for'
    from /usr/local/lib/ruby/gems/2.1.0/gems/chef-12.0.0.alpha.1/lib/chef/util/threaded_job_queue.rb:52:in `call'
    from /usr/local/lib/ruby/gems/2.1.0/gems/chef-12.0.0.alpha.1/lib/chef/util/threaded_job_queue.rb:52:in `block (3 levels) in process'
    from /usr/local/lib/ruby/gems/2.1.0/gems/chef-12.0.0.alpha.1/lib/chef/util/threaded_job_queue.rb:50:in `loop'
    from /usr/local/lib/ruby/gems/2.1.0/gems/chef-12.0.0.alpha.1/lib/chef/util/threaded_job_queue.rb:50:in `block (2 levels) in process'INFO: HTTP Request Returned 204 No Content: