KK 2.1.5

Once you have this open the software and in the drop down box select all firmware for KK 2.1.5 the Steveis1.8s1pro should be top of the list don't use Steveis1.9 this is for the acro board or if a sensor is faulty on the KK
 
Try a different programmer choice, like usbasp.
That is what I'd think, but you might check the port, it could be labled as something like Com1, plug it in, note what devices show up and then unplug it to compare and figure out which poort just disappeared. if you plug it back into the same place it should be the right port. usbasp is the most common programmer so that is probably your problem, but it could be a combination of the two as your error message suggest that you selected the wrong port/interface.
 
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