MDK 5 can not found nRF device.......

[bynce]

please .thank you!!!

[Ron Wedge]

Your issue looks similar to this forum post:

devzone.nordicsemi.com/.../

So re-running the nRF SDK installer will load the Keil packs onto your machine. These packs include all the files and examples you will need.

Please note the pack wants to install to c:/Keil

Recent versions of the Keil tools have their default installation directory as c:/Keil_v5

If you install the packs, you will have these nRF51 device database entries in Keil.