Hello @Areeba ,
I believe the issue is with the NN result decoding. As the error states, size of the bounding boxes array is 0, and you can't access the first element. Different NN models can have a different output so you have to change the decoding part of the code.
Here are some examples of decoding the NN result, just to give you an idea:

Thanks, Erik

    Thanks erik
    Yes the this issue is resolved now. I've created .blob file by using this colab notebook
    I'm using this tutorial to run .blob file in depthai
    But its showing this error
    Thanks
    Areeba

      Hello @Areeba ,
      so you used the tiny yolo v3 decoding example, modified parts that are specified by the 3 bullet points and it returns you the XlinkOut 220 error? Or is it resolved already? I tried those steps myself (when writing the instructions) and it worked flawlessly, sorry for the troubles.
      Thanks, Erik

      Yes @erik I've modified those three bullet points but its still showing the error
      I've even made changes according to this
      Thanks
      Areeba

      @Areeba could you please share the trained blob that you got from the notebook? I would love to try it out - and sorry for the inconvenience, if there is an issue with the notebook I will fix it as soon as we figure out what's wrong.
      Thanks, Erik

      Just tried it out, and it throws the XlinkOut 220 error as well - which means the output of the NN is too big. I would say there was some problem when converting the NN - resulting in the output of the blob being too big.
      We will have to troubleshoot the notebook, and we actually were planning on updating all notebooks, so we will check for this issue as well. Thank you for reporting it, we will circle back when notebooks are updated 🙂
      Thanks, Erik

      Sure @erik
      I am eagerly waiting for update.
      Hope to hear from you soon.
      Thanks a lot 😃
      Areeba

      6 days later

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      16 days later

      Hey @Luxonis-Lukasz, @erik I created the blob file using updated notebook and followed the steps to run it on depthai given in notebook but its throwing an error.
      I've attached screenshot of error

      • erik replied to this.

        Areeba did you follow the "Run on the depthai device" section of the notebook (at the bottom)? That should work as expected.

          @erik Yes, I followed the exact steps given in the notebook..

          • erik replied to this.

            Areeba Sorry for the trouble, but could you share your blob? I would like to try it out, just so we can cross out one possibility for the issue you are having.

                Hello @Areeba , sorry for the delay and inconvenience, I can confirm that there's a problem with the blob and we will check the notebook & integration of the blob with depthai tomorrow.

                Hello @Areeba , I'm unsure why it wasn't working for you, but after I went step by step through the yolov3 tutorial and it worked as expected. It might be you had an old tutorial. Script code here, blob here. Run with python3 mask-nomask-yolov3.py yolov3masks.blob 🙂