avrdude: error: programmer did not respond to command: exit bootloader

I just started working with an Arduino Yun.
I downloaded the latest version of the Arduino software and I wanted to upload the blink tutorial.
Constantly this error is popping up and I cannot find a solution to this..

avrdude: butterfly_recv(): programmer is not responding
avrdude: butterfly_recv(): programmer is not responding
Found programmer: Id = "S"; type = p
Software Version = V.

Could somebody give me some advice or solution?

Yun is connected through usb.

I had the same error and realized I had selected the wrong board. Should have selected "Arduino/Genuino Uno". Validate your board by selecting Get Board Info and make sure you have the correct board selected.

Not saying that will fix yours but a simple check before more detailed effort is needed.

SuperE123:
I had the same error and realized I had selected the wrong board. Should have selected “Arduino/Genuino Uno”. Validate your board by selecting Get Board Info and make sure you have the correct board selected.

Not saying that will fix yours but a simple check before more detailed effort is needed.

Am having the same problem and this work for me. Thanks