我是Chef / DevOps的新手 - 尝试在下载其依赖项后在Windows节点上安装postgresql（5.1.0）。我收到以下错误
NoMethodError
-------------
undefined method `[]' for nil:NilClass
Platform:
---------
i386-mingw32
[2016-12-12T10:37:22-05:00] DEBUG: Re-raising exception: NoMethodError - undefined method `[]' for nil:NilClass
C:/chef/cache/cookbooks/postgresql/recipes/client.rb:35:in `from_file'
C:/opscode/chefdk/embedded/lib/ruby/gems/2.3.0/gems/chef-12.16.42-universal-mingw32/lib/chef/mixin/from_file.rb:30:in `instance_eval'
C:/opscode/chefdk/embedded/lib/ruby/gems/2.3.0/gems/chef-12.16.42-universal-mingw32/lib/chef/mixin/from_file.rb:30:in `from_file'
C:/opscode/chefdk/embedded/lib/ruby/gems/2.3.0/gems/chef-12.16.42-universal-mingw32/lib/chef/cookbook_version.rb:233:in `load_recipe'
C:/opscode/chefdk/embedded/lib/ruby/gems/2.3.0/gems/chef-12.16.42-universal-mingw32/lib/chef/run_context.rb:338:in `load_recipe'
C:/opscode/chefdk/embedded/lib/ruby/gems/2.3.0/gems/chef-12.16.42-universal-mingw32/lib/chef/run_context.rb:294:in `block in include_recipe'
C:/opscode/chefdk/embedded/lib/ruby/gems/2.3.0/gems/chef-12.16.42-universal-mingw32/lib/chef/run_context.rb:293:in `each'
C:/opscode/chefdk/embedded/lib/ruby/gems/2.3.0/gems/chef-12.16.42-universal-mingw32/lib/chef/run_context.rb:293:in `include_recipe'
C:/opscode/chefdk/embedded/lib/ruby/gems/2.3.0/gems/chef-12.16.42-universal-mingw32/lib/chef/dsl/include_recipe.rb:26:in `include_recipe'
C:/chef/cache/cookbooks/postgresql/recipes/server.rb:22:in `from_file'
C:/opscode/chefdk/embedded/lib/ruby/gems/2.3.0/gems/chef-12.16.42-universal-mingw32/lib/chef/mixin/from_file.rb:30:in `instance_eval'
C:/opscode/chefdk/embedded/lib/ruby/gems/2.3.0/gems/chef-12.16.42-universal-mingw32/lib/chef/mixin/from_file.rb:30:in `from_file'
C:/opscode/chefdk/embedded/lib/ruby/gems/2.3.0/gems/chef-12.16.42-universal-mingw32/lib/chef/cookbook_version.rb:233:in `load_recipe'
C:/opscode/chefdk/embedded/lib/ruby/gems/2.3.0/gems/chef-12.16.42-universal-mingw32/lib/chef/run_context.rb:338:in `load_recipe'
C:/opscode/chefdk/embedded/lib/ruby/gems/2.3.0/gems/chef-12.16.42-universal-mingw32/lib/chef/run_context/cookbook_compiler.rb:141:in `block in compile_recipes'
C:/opscode/chefdk/embedded/lib/ruby/gems/2.3.0/gems/chef-12.16.42-universal-mingw32/lib/chef/run_context/cookbook_compiler.rb:138:in `each'
C:/opscode/chefdk/embedded/lib/ruby/gems/2.3.0/gems/chef-12.16.42-universal-mingw32/lib/chef/run_context/cookbook_compiler.rb:138:in `compile_recipes'
C:/opscode/chefdk/embedded/lib/ruby/gems/2.3.0/gems/chef-12.16.42-universal-mingw32/lib/chef/run_context/cookbook_compiler.rb:75:in `compile'
C:/opscode/chefdk/embedded/lib/ruby/gems/2.3.0/gems/chef-12.16.42-universal-mingw32/lib/chef/run_context.rb:187:in `load'
C:/opscode/chefdk/embedded/lib/ruby/gems/2.3.0/gems/chef-12.16.42-universal-mingw32/lib/chef/policy_builder/expand_node_object.rb:97:in `setup_run_context'
C:/opscode/chefdk/embedded/lib/ruby/gems/2.3.0/gems/chef-12.16.42-universal-mingw32/lib/chef/client.rb:510:in `setup_run_context'
然后我在Berkshelf上发现了这个SO，基于它创建了一个Berksfile
cookbook "postgresql"
它仅下载了以下依赖项'compat_resources'，'mingw'，'ohai'，'seven_zip'和'windows'
现在我最终得到了这个错误：
================================================================================
Error Resolving Cookbooks for Run List:
================================================================================
Missing Cookbooks:
------------------
The following cookbooks are required by the client but don't exist on the server:
* apt
* build-essential
* openssl
Expanded Run List:
------------------
* postgresql::server
Platform:
---------
i386-mingw32
我查看了metadata.json，可以看到Windows未被列为受支持的平台之一。那是什么原因？
"platforms": {
"ubuntu": ">= 12.04",
"debian": ">= 7.0",
"opensuse": ">= 13.0",
"suse": ">= 12.0",
"fedora": ">= 0.0.0",
"opensuseleap": ">= 0.0.0",
"amazon": ">= 0.0.0",
"redhat": ">= 6.0",
"centos": ">= 6.0",
"scientific": ">= 6.0",
"oracle": ">= 6.0"
},
需要帮助解决这个问题。