I am not sure if you are using a NXP evaluation board or not. Anyway, below document you may would like make reference first:https://www.nxp.com/docs/en/quick-reference-guide/KQRUG.pdf
We recommend the CW10.x to program the K60. Please check attached zip file, which includes two videos about how to program TWR-K60D100M board with CodeWarrior project. Wish it helps.