Cordova phonegap运行android抛出异常

phonegap运行android我在使用ubuntu执行后遇到异常。有人能告诉我哪里做错了。我在谷歌上搜索，但没有找到解决方案

[phonegap] detecting Android SDK environment...
[phonegap] using the local environment
[phonegap] adding the Android platform...
/home/user166/.cordova/lib/android/cordova/3.4.0/bin/node_modules/q/q.js:126
                    throw e;
                          ^
Error: An error occurred while listing Android targets
    at /home/user166/.cordova/lib/android/cordova/3.4.0/bin/lib/check_reqs.js:87:29
    at _rejected (/home/user166/.cordova/lib/android/cordova/3.4.0/bin/node_modules/q/q.js:808:24)
    at /home/user166/.cordova/lib/android/cordova/3.4.0/bin/node_modules/q/q.js:834:30
    at Promise.when (/home/user166/.cordova/lib/android/cordova/3.4.0/bin/node_modules/q/q.js:1079:31)
    at Promise.promise.promiseDispatch (/home/user166/.cordova/lib/android/cordova/3.4.0/bin/node_modules/q/q.js:752:41)
    at /home/user166/.cordova/lib/android/cordova/3.4.0/bin/node_modules/q/q.js:574:44
    at flush (/home/user166/.cordova/lib/android/cordova/3.4.0/bin/node_modules/q/q.js:108:17)
    at process._tickCallback (node.js:343:11)
{ [Error: /home/user166/.cordova/lib/android/cordova/3.4.0/bin/create: Command failed with exit code 1]
  stack: 'Error: /home/user166/.cordova/lib/android/cordova/3.4.0/bin/create: Command failed with exit code 1\n    at ChildProcess.whenDone (/usr/local/lib/node_modules/phonegap/node_modules/cordova/src/superspawn.js:112:23)\n    at ChildProcess.EventEmitter.emit (events.js:110:17)\n    at maybeClose (child_process.js:991:16)\n    at Process.ChildProcess._handle.onexit (child_process.js:1058:5)',
  code: 1 }
   [error] /home/user166/.cordova/lib/android/cordova/3.4.0/bin/create: Command failed with exit code 1

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您的系统windows或MacUbuntu13.04还有我的系统路径/usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/usr/games:/usr/local/games您检查此项否，我会尝试让您知道错误：执行命令“ant”，确保您已安装ant并将其添加到您的路径中。