Sir i am following this link ->https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.iotsdk.v0.9.0%2Fiot_sdk_app_mqtt_publisher.html
and I have one NRF52840 board and Mqtt Broker Setup in my Windows 10 System and non secure Connection(port number 1883)
as per document i made some changes in code after flashing the code i am getting an error
below i am attaching the error image
Sir please help me.