The macro PTAD_PTAD0 is undeclared because it register does not exist in the kinetis K64F, it register is for 8-bit MUCs. Did you generate that code in the file Clock1.h or it was PEx? Was your K64F project ported from one of another MCU?
Now I understand a little better about because it's appear in my errors. The code in the file Clock1.h was generate for PEx adding components through "Component Library".
I was following the steps of this project example, but I have something wrong because I do not get the same result: