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Arduino Nano esp32-S3 + PS3 controller, "undefined reference: xxx" "exit status 1"

I was going through "DroneBot Workshop esp32 and Ps3 controll" tutorial. Im struggling to get any of the example sketches to work with the Arduino Nano ESP32. Everytime i try to verify the sketch i ...
GitHub

undefined reference to `main' in building phase

raphy@raohy:~/libpeer/dependencies/coreMQTT$ gcc -I source/include/ -DMQTT_DO_NOT_USE_CUSTOM_CONFIG -I source/interface/ source/core_mqtt.c source/core_mqtt_state.c ...