The only way I can select the nRF51422 is by selecting the original SDK   nRF5_SDK_12.3.0_D7731ad  so that is what I will use.  I was using it before on my old hard drive with no problems.

If I rebuild all target files for my example app, ble_app_uart_pc it compiles with no error.

If I attempt to rebuild the soft device, ble_app_uart_pca10028_s130, I get the following error:

C:\Keil_v5\ARM\BIN\nrf.h(64): error:  #5: cannot open source input file "nrf51_deprecated.h": No such file or directory

I can not find that file anywhere on my new or old hard drive.  We nees to get the soft device compiling.

Also whenever I open Keil 5, I get an error message:

The project references devices, files or libraries that are not installed. Download and install:
 Third party device support for Nordic Semiconductor nRF51422_xxAC (device not included in legacy database)
I can not seem to resolve the above error.

Thanks as always for your expert support!