Esp32 Cam uploading to IoT Core Google MQTT


I am using ESP32 CAM to send images by mqtt to IoT Core in GCP but I am not able to make a connection to the server.
I am using this library:

  1. I have configured ciotc_config.h
  2. I have flashed the esp32_lwmqtt into the ESP32 CAM using arduino ide

And I am getting the following error:

Refreshing JWT
not connected
Settings incorrect or missing a cyper for SSL
Connect with
ClientId: projects//locations/europe-west1/registries//devices/
Waiting 60 seconds, retry will likely fail

I was able in the past to do this on ESP8266 using certificates but not able to replicate on ESP21 any idea?

Still trying without luck...

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