stk500_recv(): programmer is not responding

MAC OS X YOSEMITE Version 10.10.5
Arduino Uno

I manage to connect the right board,"Arduino/ Genuino Uno" and port, "/dev/cu.usbmodem1411 (Arduino/ Genuino Uno)".
I am trying to upload the built-in example "blink", verified, pressed reset on the board and then clicked upload.
"avrdude: stk500_recv(): programmer is not responding" shows up in red

I have read the forums and I still do not find what is wrong. My Arduino is naked. Nothing is connected other than the usb port from the board to my laptop. I tried changing wires, checking the burnloader, checking the board, checking the port and I still have not solved it yet!! HELP!!!!

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