nrf51822 could no flash via nrfgo studio

[ridvan]

Hi

I'm new nrf devices, I'm trying to flash my device via nrfgo studio but every time got error. Here is screenshut of program:

Edit: J-link commander connection: Thanks

[ridvan]

I don not have j-link commander, let me install from here :www.segger.com/jlink-software.html