nrf 51822 ble_app_uart compile

Question

hi, i am getting start nrf 51822 BEL with ble_app_uart
as a first step, i just compile the one of the BLE example 'ble_app_urat" which is located in 'C:\Keil_v5\ARM\Device\Nordic
rf51822\Board\pca10001\s110\ble_app_uart'
actually i download that example at the web. 
 Then i got a problem that the project cannot find the header files related to the ble i think..(#include "nordic_common.h", #include "ble_hci.h",#include "ble_advdata.h" such things...)
but i can find these header files in "C:\Keil_v5\ARM\Device\Nordic
rf51822\Include" 
 how can i let the project find the header files and complie the project successfully??
i fall into utter confusion... please help me nn

Susheel Nuguru · Accepted Answer

Seems like you are running the examples inside keil folder, i am not sure of their header dependency. Why don't you download the SDK here You will then be sure that your example compiles as long as you have nordic tool chain installed.