Linker issue in SDK15.2

[morerook]

I am following this tutorial:

https://devzone.nordicsemi.com/nordic/short-range-guides/b/software-development-kit/posts/application-timer-tutorial?CommentId=43347679-22d9-4d45-ad73-4632d06c5e3e

But when I compile I ran into this issue where

1> Linking app_timer_tutorial_pca10056.elf
1> C:/Program Files/SEGGER/SEGGER Embedded Studio for ARM 4.16/gcc/arm-none-eabi/bin/ld: Output/app_timer_tutorial_pca10056 Release/Obj/main.o: in function `main':
1> D:\Current Work\BLE\nRF5_SDK_15.2.0_9412b96\examples\peripheral\nrf5-application-timer-tutorial/main.c:150: undefined reference to `app_timer_init'
Build failed

It appears to be a linker issue. I have done the necessary includes and the changes to the sdk_config.h file but this error still pops up.

[Amanda Hsieh]

Hi,

 

From the error message, the app_timer.c which has the app_timer_init definition is not set as the tutorial. 

Could you kindly help check:

1. <SDK>/components/libraries/timer/app_timer.c is added into right side library folder as 
   
2. The main.c includes statements:
   

   #include "app_timer.h"

3. Enable timer driver in the sdk_config.h as the tutorial.

 

-Amanda H.