Can't see nrf51822 packets in wireshark

[sofi_mukhtar]

while i open ble sniffer , it sucessfully recognizes the nrf51822 ble nano but when i press w to open the wireshark, it shows no packets and in the interface list it shows like nordic-ble(null)

[sofi_mukhtar]

i used nrf51822. and i didn't use segger i simply used drag and drop method