Thanks Ole. In my case I have Keil MDK-Lite 5.14.0.0 and I already installed the nRFgo SDK (and reinstalled it a couple of times) but in Options for target '...' / Device (as shown above), I cannot find Nordic Semiconductor listed! Therefore I cannot do a manual selection as you suggested. Everything else seems to be in place: the pack in Keil_v5 / ARM / Pack and so on. I am trying to run C:\Nordic Semiconductor\nRF51 SDK_v5.2.0.39364\Nordic\nrf51422\Board\nrf6310\blinky_example\arm. The only thing that I find different from a previous working configuration is that 'ARM Cortex-M Profile Device Support Template' pack is missing. But well, I have the same problem described by bynce. I appreciate any advice on this.
