PhoneGab: Fehlermeldung: An error occured during creation of android sub-project.

[36m[phonegap][39m detecting Android SDK environment...
[36m[phonegap][39m using the local environment
[36m[phonegap][39m adding the Android platform...
[31m   [error][39m An error occured during creation of android sub-project. 


C:\Users\r23\.cordova\lib\android\cordova\3.3.0\bin\node_modules\q\q.js:126
                	throw e;
                      	^
Error: ERROR : executing command 'ant', make sure you have ant installed and added to your path.
	at C:\Users\r23\.cordova\lib\android\cordova\3.3.0\bin\lib\check_reqs.js:47:27
	at ChildProcess.exithandler (child_process.js:641:7)
	at ChildProcess.EventEmitter.emit (events.js:98:17)
	at maybeClose (child_process.js:743:16)
	at Socket.<anonymous> (child_process.js:956:11)
	at Socket.EventEmitter.emit (events.js:95:17)
	at Pipe.close (net.js:466:12)