SDK11.0 app_gpiote_user_register

[summer]

hi ,everyone.Why do I use app_gpiote_user_register this function in my SDK11.0 , and i download in nrf52832 ,i found that he could not initialize, what's the problem?How do I change?As shown in the figure below:

[Daniel Wang]

What does the err_code return when you call app_gpiote_user_register() function?