error message from debugger back end: error finishing flash operation;

[BS K.739]

i'm using stm32f407 discovery board, and mac as host and i'm getting the above error while debugging. Please someone help me to resolve this issue

[alister]

You might check your option bytes are sensible for debugging with STM32CubeProgrammer. E.g. RDP is off, WRP and PCROP over the sectors you're loading are off, hardware WDG is off.

[MBala.2]

You have to install STM32 ST-Link Utility and erase with it the whole flash memory. After that, update the firmware on the board again.

For me this solved the problem.

[HERO]

Actually there is a simple way to solve this problem: