`berks install` does not work on my windoze 7

Berksfile

site :opscode

cookbook 'mysql'
cookbook 'nginx', '~> 0.101.5'

Gemfile

source :rubygems

gem 'berkshelf', '0.6.0.beta2', :path => 'D:\Repos\_github_others\berkshelf'

Gemfile.lock

PATH
  remote: D:/Repos/_github_others/berkshelf
  specs:
    berkshelf (0.6.0.beta2)
      activemodel
      activesupport
      chef (~> 10.12)
      hashie
      minitar
      multi_json
      ridley (>= 0.0.5)
      solve (>= 0.4.0.rc1)
      thor (~> 0.16.0)
      vagrant (~> 1.0.5)

GEM
  remote: http://rubygems.org/
  specs:
    activemodel (3.2.8)
      activesupport (= 3.2.8)
      builder (~> 3.0.0)
    activesupport (3.2.8)
      i18n (~> 0.6)
      multi_json (~> 1.0)
    addressable (2.3.2)
    archive-tar-minitar (0.5.2)
    builder (3.0.3)
    bunny (0.7.9)
    chef (10.14.4)
      bunny (>= 0.6.0, < 0.8.0)
      erubis
      highline (>= 1.6.9)
      json (>= 1.4.4, <= 1.6.1)
      mixlib-authentication (>= 1.3.0)
      mixlib-cli (>= 1.1.0)
      mixlib-config (>= 1.1.2)
      mixlib-log (>= 1.3.0)
      mixlib-shellout
      moneta
      net-ssh (~> 2.2.2)
      net-ssh-multi (~> 1.1.0)
      ohai (>= 0.6.0)
      rest-client (>= 1.0.4, < 1.7.0)
      treetop (~> 1.4.9)
      uuidtools
      yajl-ruby (~> 1.1)
    childprocess (0.3.6)
      ffi (~> 1.0, >= 1.0.6)
    chozo (0.0.3)
      activemodel
      activesupport
      multi_json (>= 1.3.0)
    erubis (2.7.0)
    faraday (0.8.4)
      multipart-post (~> 1.1)
    ffi (1.1.5-x86-mingw32)
    hashie (1.2.0)
    highline (1.6.15)
    i18n (0.6.1)
    ipaddress (0.8.0)
    json (1.5.4)
    log4r (1.1.10)
    mime-types (1.19)
    minitar (0.5.3)
    mixlib-authentication (1.3.0)
      mixlib-log
    mixlib-cli (1.2.2)
    mixlib-config (1.1.2)
    mixlib-log (1.4.1)
    mixlib-shellout (1.1.0-x86-mingw32)
      win32-process (~> 0.6.5)
    moneta (0.6.0)
    multi_json (1.3.6)
    multipart-post (1.1.5)
    net-scp (1.0.4)
      net-ssh (>= 1.99.1)
    net-ssh (2.2.2)
    net-ssh-gateway (1.1.0)
      net-ssh (>= 1.99.1)
    net-ssh-multi (1.1)
      net-ssh (>= 2.1.4)
      net-ssh-gateway (>= 0.99.0)
    ohai (6.14.0)
      ipaddress
      mixlib-cli
      mixlib-config
      mixlib-log
      systemu
      yajl-ruby
    polyglot (0.3.3)
    rest-client (1.6.7)
      mime-types (>= 1.16)
    ridley (0.3.1)
      activemodel (>= 3.2.0)
      activesupport (>= 3.2.0)
      addressable
      chozo (>= 0.0.3)
      faraday
      mixlib-authentication
      mixlib-log
      multi_json (>= 1.0.4)
      yajl-ruby
    solve (0.4.0.rc1)
      json
    systemu (2.5.2)
    thor (0.16.0)
    treetop (1.4.11)
      polyglot
      polyglot (>= 0.3.1)
    uuidtools (2.1.3)
    vagrant (1.0.5.1)
      archive-tar-minitar (= 0.5.2)
      childprocess (~> 0.3.1)
      erubis (~> 2.7.0)
      i18n (~> 0.6.0)
      json (~> 1.5.1)
      log4r (~> 1.1.9)
      net-scp (~> 1.0.4)
      net-ssh (~> 2.2.2)
    win32-api (1.4.8-x86-mingw32)
    win32-process (0.6.6)
      windows-pr (>= 1.2.2)
    windows-api (0.4.2)
      win32-api (>= 1.4.5)
    windows-pr (1.2.2)
      win32-api (>= 1.4.5)
      windows-api (>= 0.3.0)
    yajl-ruby (1.1.0-x86-mingw32)

PLATFORMS
  x86-mingw32

DEPENDENCIES
  berkshelf (= 0.6.0.beta2)!