title: Error Installing KeyStone.Js on windows 7 64 bit
body: <p>i'm trying to install keystone.js via windows cmd but its still got errors like this:</p>
  
  <pre><code>npm ERR! yo@1.3.3 postinstall: `yodoctor`
  npm ERR! spawn ENOENT
  npm ERR!
  npm ERR! Failed at the yo@1.3.3 postinstall script.
  npm ERR! This is most likely a problem with the yo package,
  npm ERR! not with npm itself.
  npm ERR! Tell the author that this fails on your system:
  npm ERR!     yodoctor
  npm ERR! You can get their info via:
  npm ERR!     npm owner ls yo
  npm ERR! There is likely additional logging output above.
  npm ERR! System Windows_NT 6.1.7601
  npm ERR! command "C:\\Program Files\\nodejs\\\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install" "-g" "generator-keystone"
  npm ERR! cwd C:\Users\Pisa Family
  npm ERR! node -v v0.10.36
  npm ERR! npm -v 1.4.28
  npm ERR! syscall spawn
  npm ERR! code ELIFECYCLE
  npm ERR! errno ENOENT
  npm ERR! not ok code 0
  
  C:\Users\Pisa Family&gt;npm install -g yo
  C:\Users\Pisa Family\AppData\Roaming\npm\yo -&gt; C:\Users\Pisa Family\AppData\Roaming\npm\node_modules\yo\cli.js
  </code></pre>
  
  <p>i've tried to install yo package too, to try the yo doctor but it ends up failed too. here's the error log:</p>
  
  <pre><code>C:\Users\Pisa Family&gt;npm install -g yo
  C:\Users\Pisa Family\AppData\Roaming\npm\yo -&gt; C:\Users\Pisa Family\AppData\Roaming\npm\node_modules\yo\cli.js
  
  &gt; yo@1.3.3 postinstall C:\Users\Pisa Family\AppData\Roaming\npm\node_modules\yo
  &gt; yodoctor
  
  
  npm ERR! yo@1.3.3 postinstall: `yodoctor`
  npm ERR! spawn ENOENT
  npm ERR!
  npm ERR! Failed at the yo@1.3.3 postinstall script.
  npm ERR! This is most likely a problem with the yo package,
  npm ERR! not with npm itself.
  npm ERR! Tell the author that this fails on your system:
  npm ERR!     yodoctor
  npm ERR! You can get their info via:
  npm ERR!     npm owner ls yo
  npm ERR! There is likely additional logging output above.
  npm ERR! System Windows_NT 6.1.7601
  npm ERR! command "C:\\Program Files\\nodejs\\\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install" "-g" "yo"
  npm ERR! cwd C:\Users\Pisa Family
  npm ERR! node -v v0.10.36
  npm ERR! npm -v 1.4.28
  npm ERR! syscall spawn
  npm ERR! code ELIFECYCLE
  npm ERR! errno ENOENT
  npm ERR! not ok code 0
  </code></pre>
  
  <p>i already search on google and still couldn't find any solutions (or maybe i missed one). need any advice and help, thx.</p>