Why do I get errors from nrf_delay.h?

[Ahmed]

I have included all paths of all (.h) files including (nrf_delay.h) however I got errors as seen in the photo. What do you suggest to overcome such errors? Also, Is the following error resulting from the problem in nrf_delay.h? "E:\sendingcode\ble_app_twi\main.c(418): error: #55-D: too many arguments in invocation of macro "APP_TIMER_INIT" APP_TIMER_INIT(APP_TIMER_PRESCALER, APP_TIMER_MAX_TIMERS, APP_TIMER_OP_QUEUE_SIZE, true); "

Thanks in advance.

[gortok]

The nrf_delay errors are a red herring. They'll pop up as errors in your IDE, but they'll never cause you not to be able to build.

Your problem is with your invocation of APP_TIMER_INIT.

In SDK 11, APP_TIMER_INIT only has three arguments, and according to your screenshot, you're passing in four.

Here's the definition of APP_TIMER_INIT in app_timer.h:

/*lint -emacro(506, APP_TIMER_INIT) */ /* Suppress "Constant value Boolean */
#define APP_TIMER_INIT(PRESCALER, OP_QUEUES_SIZE, SCHEDULER_FUNC)                                  \
do                                                                                             \
{                                                                                              \
    static uint32_t APP_TIMER_BUF[CEIL_DIV(APP_TIMER_BUF_SIZE((OP_QUEUES_SIZE) + 1),           \
                                           sizeof(uint32_t))];                                 \
    uint32_t ERR_CODE = app_timer_init((PRESCALER),                                            \
                                       (OP_QUEUES_SIZE) + 1,                                   \
                                       APP_TIMER_BUF,                                          \
                                       SCHEDULER_FUNC);                                        \
    APP_ERROR_CHECK(ERR_CODE);                                                                 \
} while (0)

So you should be passing in this:

APP_TIMER_INIT(APP_TIMER_PRESCALER, APP_TIMER_OP_QUEUE_SIZE, true);

Not what you were passing in, which is this:

APP_TIMER_INIT(APP_TIMER_PRESCALER, APP_TIMER_MAX_TIMERS, APP_TIMER_OP_QUEUE_SIZE, true);