.\_build\nrf52840_xxaa.axf: Error: L6218E: Undefined symbol ble_bas_init (referred from main.o).

[mohanraj360]

 undefined error how to solve this

[awneil]

mohanraj360 said:

undefined error how to solve this

The clue is in the name: the was to solve an un-defined error is to define the symbols in question!

Where do you think they should be defined?

Have you added the necessary .c source files to your Project? 

Have you made necessary changes to the sdk_config.h file to enable them?