RPC connection error

I am facing error while trying to auto-tune for ARM as shown in this tutorial here : https://tvm.apache.org/docs/how_to/tune_with_autotvm/tune_relay_arm.html#sphx-glr-how-to-tune-with-autotvm-tune-relay-arm-py

The RPC tracker couldn’t track down the connected Raspberry PI as shown below.

Environment

Operating System for host : Linux 22.04 LTS Operating System for target : Raspbian 64 bit OS

Steps to reproduce

  1. Start the RPC tracker on the host system by the command python -m tvm.exec.rpc_tracker --host=0.0.0.0 --port=9190

  2. Start the RPC server in the target devices by the command : python -m tvm.exec.rpc_server --tracker=[HOST_IP]:9190 --key=[KEY] .In the case of HOST_IP and KEY use your host system IP address and key for target device.

3.Track the connected devices to the current RPC tracker on your host device : python -m tvm.exec.query_rpc_tracker --host=0.0.0.0 --port=9190

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