Error: avrdude: stk500_recv() on MacOSX 10.9

I can't upload to Arduino UNO V3 on MacOSX 10.9

  • Board: Arduino UNO V3; ATMEGA328P-PU
  • Port: /dev/tty.usbmodemfa131
  • Error:
avrdude: stk500_recv(): programmer is not responding
processing.app.debug.RunnerException
	at cc.arduino.packages.uploaders.SerialUploader.uploadUsingPreferences(SerialUploader.java:129)
	at processing.app.Sketch.upload(Sketch.java:1672)
	at processing.app.Sketch.exportApplet(Sketch.java:1578)
	at processing.app.Sketch.exportApplet(Sketch.java:1550)
	at processing.app.Editor$DefaultExportHandler.run(Editor.java:2399)
	at java.lang.Thread.run(Thread.java:695)
Caused by: processing.app.debug.RunnerException: Problem uploading to board.  See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.
	at cc.arduino.packages.Uploader.executeUploadCommand(Uploader.java:113)
	at cc.arduino.packages.uploaders.SerialUploader.uploadUsingPreferences(SerialUploader.java:127)
	... 5 more

Help me please!!!