Undefined symbol problem (app_uart_get)

[Moriteru]

I'm sorry for this easy question. I'm just starting to develop an application using a nrf52832.

I want to use uart functions, so I added a line #include "app_uart.h". But when I build the source, it failed saying "._build\nrf52832_xxaa.axf: Error: L6218E: Undefined symbol app_uart_get (referred from main.o)."

What should I do?

[Alex]

Have you added "app_uart.c" to your project?