Found an interesting error. Thought to share with you all.
While programming from MiniProg3, if you find the following error message,
"Firmware file isn't found by the path: C:\Program Files (x86)\Cypress\Programmer\3.19.1\helper.hex"
Then, helper.hex file will be missing from the installed folder. This file will be in the path “C:\Program Files (x86)\Cypress\Programmer\3.19.1\helper.hex” when PSoC Programmer is installed.
If it is missing you will see the error mentioned above.
It is the firmware file of one of the components in MiniProg3 and it has to be present while programming.