Hi,
Thanks to member for the solution providing.
I have generate led blinking project for MDK ARM Keil uvision5.25 using STM32CUbeX IDE. Project is compiled successfully with 0 error. Getting Error " As not target connected" when i try to load the firmware as per attached images. Connecting STM32L151CB microcontroller to ST-LINK/V2 Programmer with given 5 pin ->1) VCC 2) GND 3) SWDCLK 4) NRST 5) TMS/SWDIO
Its kind request to you to provide me the solution to resolve these error as soon as possible.
Thanks and regards,RRJ