events.js：85 throw er; //未处理的错误＆＃39;事件

Question

升级后，我无法再在OS X系统上启动新的Ember应用程序：

$ ember s
version: 1.13.8
Livereload server on http://localhost:49156
Serving on http://localhost:4200/
events.js:85
      throw er; // Unhandled 'error' event
            ^
Error: shutdown ENOTCONN
    at exports._errnoException (util.js:746:11)
    at Socket.onSocketFinish (net.js:240:26)
    at Socket.emit (events.js:104:17)
    at finishMaybe (_stream_writable.js:484:14)
    at endWritable (_stream_writable.js:493:3)
    at Socket.Writable.end (_stream_writable.js:459:5)
    at Socket.end (net.js:415:31)
    at ChildProcess.<anonymous> (/Users/xyz/Sandbox/tests/tt2/node_modules/ember-cli/node_modules/sane/node_modules/fb-watchman/index.js:163:17)
    at ChildProcess.emit (events.js:110:17)
    at maybeClose (child_process.js:1015:16)
$

软件版本：

$ ember -v
version: 1.13.8
node: 0.12.7
npm: 2.13.4
os: darwin x64
$

我该怎么做才能解决这个问题？