i downloaded source code from github.com/.../nrf51-ble-app-lbs. and i am getting error like C:\Keil_v5\ARM\PACK\NordicSemiconductor\nRF_DeviceFamilyPack\8.2.0\Device\Include\nrf51.h(119): error: #5: cannot open source input file "core_cm0.h": No such file or directory. can you tell me how to solve this error?
