Would be much easier to use the IDE and the MiniProg3. Can you tell us what the error exactly is and what connections you made from miniprog to your PSoC BLE board? Screen snapshot could help.
It seems that there is some issue when compiled by MDK toolchian and debug in PSOC with MiniProg3, I switched back to gcc, can debug smoothly. The error just say the Miniprog or PSOC encount an error and should terminate the debug, no more detail.
Thanks you, Bob for your reply.