Arduino 101 Error: device not responding.

I'm using Macbook with Arduino IDE 1.6.8 and Intel Curie board 1.0.6

Try to upload sketch and got this error

...
Flashing is taking longer than expected
Try pressing MASTER_RESET button
ERROR: Device is not responding.
Device is not responding, check the right serial port is selected or RESET the board right before exporting
...

Anything updated about this issue?