Error: No such file or directory when adding new files in sdk, call back function definition in ble_service.c definition in

Dear Dialog,

1. In the process of custom service creation, I have created two files custom_service.h and custom_service.c inside the "sdk -> ble-> services" folder of the ble_adv demo project. I am using the sdk 10.0.10. when I tried to build the project, I am getting this error for custom_service.h.

"fatal error: custom_service.h: No such file or directory
#include "custom_service.h"
| ^~~~~~~~~~~~~~~~~~

I am not understanding what's wrong with this new files addition. They are in the correct path and their project locations are the same. I checked the include paths in the c/c++ build settings as well. everything looks fine. I request you to please help me with this as I cannot test my my new additions whether they are working or not.

2. I have some confusion in understanding the call back functions prototype and their definition in ble_service.h and ble_service.c files in /ble_adv/sdk/ble/services/includes/ble_service.h and /ble_adv/sdk/ble/services/src/ble_service.c files respectvely in the sdk. I will attach here one function to explain what I did not understand.

//call back function prototype in ble_service.h typedef void (* connected_evt_t) ( ble_service_t *svc, const ble_evt_gap_connected_t *evt); // I am assuming the following is the above call back function(connected_evt) definition static void connected_evt(const ble_evt_gap_connected_t *evt) { int i; for (i = 0; i < MAX_SERVICES; i++) { ble_service_t *svc = services[i]; if (svc && svc->connected_evt) { svc->connected_evt( evt); } } }

So, here what I didnot get is

1. If (*connected_evt_t) is pointing to the connected_evt() function, why the first argument (ble_service_t *svc) is not passed in the function definition. Since the prototype and the definition should be same with number of argments?

Thanks in advance.

Regards, Prasanna