*** Using Compiler 'V5.05 update 2 (build 169)', folder: 'C:\Keil_v5\ARM\ARMCC\Bin'
Rebuild target 'nrf51422_xxac'
compiling dfu_ble_svc.c...
compiling main.c...
compiling ble_advdata.c...
compiling ble_conn_params.c...
compiling ble_dfu.c...
compiling ble_srv_common.c...
compiling nrf_delay.c...
compiling pstorage.c...
compiling app_error.c...
compiling app_scheduler.c...
compiling app_timer.c...
compiling app_timer_appsh.c...
compiling bootloader.c...
compiling bootloader_settings_arm.c...
compiling bootloader_util_arm.c...
compiling crc16.c...
compiling dfu_dual_bank.c...
compiling dfu_init_template.c...
compiling dfu_transport_ble.c...
compiling hci_mem_pool.c...
compiling nrf_assert.c...
compiling softdevice_handler.c...
compiling softdevice_handler_appsh.c...
assembling arm_startup_nrf51.s...
compiling system_nrf51.c...
linking...
Program Size: Code=14148 RO-data=340 RW-data=236 ZI-data=4992  
FromELF: creating hex file...
".\_build\nrf51422_xxac.axf" - 0 Error(s), 0 Warning(s).
Build Time Elapsed:  00:00:06
nrfjprog.exe --reset --program "C:\Development\nRF51_SDK_8.0.0_5fc2c3a\examples\dfu\bootloader\pca10028\dual_bank_ble_s110\arm5_no_packs\_build\nrf51422_xxac.HEX"
ERROR: Two arguments were provided that cannot be combined. Use --help to read
ERROR: about the valid argument combinations.