Platformio build error: 'CONFIG_ESPNOW_CHANNEL' undeclared (AEGHB-27)

[Ca-AD]

Where can I correct this error?

Building in release mode Compiling .pio\build\esp32dev\src\main.o src/main.c: In function 'example_espnow_task': src/main.c:225:41: error: 'CONFIG_ESPNOW_CHANNEL' undeclared (first use in this function); did you mean 'CONFIG_SPIFFS_CACHE'? peer->channel = CONFIG_ESPNOW_CHANNEL; ^~~~~ CONFIG_SPIFFS_CACHE src/main.c:225:41: note: each undeclared identifier is reported only once for each function it appears in src/main.c:228:43: error: 'CONFIG_ESPNOW_LMK' undeclared (first use in this function); did you mean 'CONFIG_ESP_INT_WDT'? memcpy(peer->lmk, CONFIG_ESPNOW_LMK, ESP_NOW_KEY_LEN); ^~~~~ CONFIG_ESP_INT_WDT In file included from C:/Users/L_D/.platformio/packages/framework-espidf/components/esp_timer/include/esp_timer.h:44, from C:/Users/L_D/.platformio/packages/framework-espidf/components/freertos/xtensa/include/freertos/portmacro.h:84, from C:/Users/L_D/.platformio/packages/framework-espidf/components/freertos/include/freertos/portable.h:95, from C:/Users/L_D/.platformio/packages/framework-espidf/components/freertos/include/freertos/FreeRTOS.h:107, from src/main.c:19: src/main.c: In function 'example_espnow_init': src/main.c:301:49: error: 'CONFIG_ESPNOW_PMK' undeclared (first use in this function); did you mean 'CONFIG_ESP_INT_WDT'? ESP_ERROR_CHECK( esp_now_set_pmk((uint8_t *)CONFIG_ESPNOW_PMK) ); ^~~~~ C:/Users/L_D/.platformio/packages/framework-espidf/components/esp_common/include/esp_err.h:118:31: note: in definition of macro 'ESP_ERROR_CHECK' esp_err_t __err_rc = (x); \ ^ src/main.c:312:21: error: 'CONFIG_ESPNOW_CHANNEL' undeclared (first use in this function); did you mean 'CONFIG_SPIFFS_CACHE'? peer->channel = CONFIG_ESPNOW_CHANNEL; ^~~~~ CONFIG_SPIFFS_CACHE src/main.c:332:25: error: 'CONFIG_ESPNOW_SEND_COUNT' undeclared (first use in this function); did you mean 'CONFIG_ESP32_REV_MIN'? send_param->count = CONFIG_ESPNOW_SEND_COUNT; ^~~~~~~~ CONFIG_ESP32_REV_MIN src/main.c:333:25: error: 'CONFIG_ESPNOW_SEND_DELAY' undeclared (first use in this function); did you mean 'CONFIG_ESP32_REV_MIN_0'? send_param->delay = CONFIG_ESPNOW_SEND_DELAY; ^~~~~~~~ CONFIG_ESP32_REV_MIN_0 src/main.c:334:23: error: 'CONFIG_ESPNOW_SEND_LEN' undeclared (first use in this function); did you mean 'CONFIG_ESP32_REV_MIN'? send_param->len = CONFIG_ESPNOW_SEND_LEN; ^~~~~~ CONFIG_ESP32_REV_MIN

[zhanzhaocheng]

You need to add espnow.h to your main.c

[Ca-AD]

You need to add espnow.h to your main.c I have already added it, but it still doesn't work。 Add the definition in the config file and compile successfully

[lhespress]

@NoobSmall You can reference the solution example which use all components of the project.

[lhespress]

@NoobSmall Closing this issue since there has been no update on this. Please feel free to reopen if required.