compiling error for ibeacon

[Webmobi]

.\_build\nrf51422_xxac.axf: Error: L6218E: Undefined symbol app_timer_init (referred from main.o).
.\_build\nrf51422_xxac.axf: Error: L6218E: Undefined symbol app_button_disable (referred from bsp.o).
.\_build\nrf51422_xxac.axf: Error: L6218E: Undefined symbol app_button_enable (referred from bsp.o).
.\_build\nrf51422_xxac.axf: Error: L6218E: Undefined symbol app_button_init (referred from bsp.o).
.\_build\nrf51422_xxac.axf: Error: L6218E: Undefined symbol app_timer_create (referred from bsp.o).
.\_build\nrf51422_xxac.axf: Error: L6218E: Undefined symbol app_timer_start (referred from bsp.o).
.\_build\nrf51422_xxac.axf: Error: L6218E: Undefined symbol app_timer_stop (referred from bsp.o).

Keil image

Keil image 2

sdk_config.h

[Jørgen Holmefjord]

Hi,

Have you added the source files of the timer (app_timer.c) and button (app_button.c) library to the project, and enabled the modules in the SDK configuration header using #define APP_TIMER_ENABLED 1 and #define BUTTON_ENABLED 1?

Best regards, Jørgen

[Webmobi]

i have added both source files in nrf_libraries, both app_timer_enable 1 and button_enable 1 are selected (ticked). But error not yet solved

[Webmobi]

i added two header files u mentioned in main , i got

.\_build\nrf51422_xxac.axf: Error: L6200E: Symbol bsp_button_is_pressed multiply defined (by bsp.o and main.o).
.\_build\nrf51422_xxac.axf: Error: L6200E: Symbol bsp_buttons_disable multiply defined (by bsp.o and main.o).
.\_build\nrf51422_xxac.axf: Error: L6200E: Symbol bsp_buttons_enable multiply defined (by bsp.o and main.o).
.\_build\nrf51422_xxac.axf: Error: L6200E: Symbol bsp_buttons_state_get multiply defined (by bsp.o and main.o).
.\_build\nrf51422_xxac.axf: Error: L6200E: Symbol bsp_event_to_button_action_assign multiply defined (by bsp.o and main.o).
.\_build\nrf51422_xxac.axf: Error: L6200E: Symbol bsp_indication_set multiply defined (by bsp.o and main.o).
.\_build\nrf51422_xxac.axf: Error: L6200E: Symbol bsp_indication_text_set multiply defined (by bsp.o and main.o).
.\_build\nrf51422_xxac.axf: Error: L6200E: Symbol bsp_init multiply defined (by bsp.o and main.o).
.\_build\nrf51422_xxac.axf: Error: L6200E: Symbol bsp_wakeup_buttons_set multiply defined (by bsp.o and main.o).
.\_build\nrf51422_xxac.axf: Error: L6200E: Symbol bsp_wakeup_nfc_set multiply defined (by bsp.o and main.o).

[Jørgen Holmefjord]

Can you check that there is no duplicate of sdk_config.h in your project and that app_timer_enable and button_enable is not defined anywhere else in your code? Which header files did you add to main?

[Jørgen Holmefjord]

The last errors you posted will come if you have included the bsp.c source file in main.c file (#include "bsp.c"). You should not include source files this way, add the source files to the Keil project by left clicking the folder, selecting Add existing files to group 'group'.. and browse to the file you want to add.

[Webmobi]

If the source file is added in one group, is it necessary to add it in another group?