yes I know. After all that I have read, i think that it shouldn't be happening.
I am posting the example of the blink file as to see that it is not related with the sketch itself, and you can see that I have the Arduino selected,, and the error in the background highlighted
*By the way until a couple of days ago it was working correctly,
It was a combination of several factors
1) I had the switch between the USB port and MicroUSB in the wrong position, toward the USB port instead of the MicroUSB
2) When click on the ino file, I was uploading the standard IDE Arduino, and not the Intel Edison Arduino IDE 1.5.3, can look the same, but as I can see now, they are not the same.
It seems that it is working now. I will double check.