Following web-sites-nodejs-store-data-mongodb tutorial get azure.err when execute site create

I encountered azure.err message when executing site create while following tutorial from following URL

http://azure.microsoft.com/zh-tw/documentation/articles/web-sites-nodejs-store-data-mongodb/

execution stop at executing git init within powershell

Sat Sep 13 2014 02:25:59 GMT+0800 (台北標準時間):
  { [Error: Command failed: 'git' ���O�����Υ~���R�O�B�i���檺�{���Χ妸�ɡC
  ]
    stack: [Getter/Setter],
    killed: false,
    code: 1,
    signal: null,
    __frame: 
     { name: 'LinkedRevisionControlClient_prototype_initGitOnCurrentDirectory__3',
       line: 119,
       file: 'C:\\Program Files (x86)\\Microsoft SDKs\\Azure\\CLI\\lib\\util\\git\\linkedrevisioncontrol.js',
       prev: 
        { name: 'GitClient_prototype_init__6',
          line: 204,
          file: 'C:\\Program Files (x86)\\Microsoft SDKs\\Azure\\CLI\\lib\\util\\git\\linkedrevisioncontrol.js',
          prev: [Object],
          active: false,
          offset: 2,
          col: 2 },
       active: false,
       offset: 4,
       col: 4 },
    rawStack: [Getter] }
  Error: Command failed: 'git' ���O�����Υ~���R�O�B�i���檺�{���Χ妸�ɡC

      at ChildProcess.exithandler (child_process.js:637:15)
      at ChildProcess.EventEmitter.emit (events.js:98:17)
      at maybeClose (child_process.js:735:16)
      at Process.ChildProcess._handle.onexit (child_process.js:802:5)
      at LinkedRevisionControlClient_prototype_initGitOnCurrentDirectory__3 (C:\Program Files (x86)\Microsoft SDKs\Azure\CLI\lib\util\git\linkedrevisioncontrol.js:123:4)
      at GitClient_prototype_init__6 (C:\Program Files (x86)\Microsoft SDKs\Azure\CLI\lib\util\git\linkedrevisioncontrol.js:206:2)
      at __4 (C:\Program Files (x86)\Microsoft SDKs\Azure\CLI\lib\commands\asm\site.js:267:12)

If I use cygwin, git init works within the same directory.

Please help