TechOverflow Logo
TechOverflow

How to fix ESP-IDF error: cannot convert 'esp_interface_t' to 'wifi_interface_t'

Problem:

While trying to compile your ESP-IDF app using code such as

esp_wifi_set_config_error.cpp
ESP_ERROR_CHECK(esp_wifi_set_config(ESP_IF_WIFI_STA, &wifi_config));

you see an error message such as

espidf_error_build_output.txt
src/main.cpp:76:41: error: cannot convert 'esp_interface_t' to 'wifi_interface_t'
    76 |     ESP_ERROR_CHECK(esp_wifi_set_config(ESP_IF_WIFI_STA, &wifi_config));
         |                                         ^~~~~~~~~~~~~~~
         |                                         |
         |                                         esp_interface_t

Solution

Instead of ESP_IF_WIFI_STA, use WIFI_IF_STA (which has the correct type):

esp_wifi_set_config_fix.cpp
ESP_ERROR_CHECK(esp_wifi_set_config(WIFI_IF_STA, &wifi_config));
Check out similar posts by category: C/C++, ESP8266/ESP32