Sorry for late reply team is busy with projects.
We tried everything as your side mentioned in above post and issue remains same.
Same issue getting on one more board STM32F407VG having onboard STLink.
Please provide quick solution.
I asked you for a pinout screen configuration from cubeIDE.
It seems to me that you changed board, Didn’t you?
I think @Nysse mentioned a valid point. The STM32 board selected in the IDE is different from which you are using. You’re have connected STM32F407G board to your PC but you have chosen STM32L433RCT chip in your IDE. You have to create a new project with your board/chip.
Issue solved thankyou very much guy’s.