I have customised board for one of my project. STM32GO32J6M3 8-pin MCU is used. when i connect st-link i am getting error called st-link " no target connected" how to solve this?

[SBHAT.2]

ST-LINK/V2-20 pin

JTCK------8 th pin of MCU

JTMS------7 th

NRST------4 th

GND------- 3 rd

Vdd---------2 nd only this much connection is there with my pcb to st-link/v2