Inquiry of the error of output port data type which can't be fixed

Hello everyone,

I faced one error "Unable to register data type 'BusMultiObjectTracker1' for 'TrialRef/Tracks' due to the following error: The number of elements must be greater than zero for this data type.",which I cann't figure it out. I don't get it.

I've spent many many days on my model and it's not still working.

Please take a look at this issue if you are familiar with it.

The layout is like below:

Any help is much appreicated!

Regards,

Edward

Answer 1

[Fangjun Jiang]

'BusMultiObjectTracker1' is likely a Simulink.Bus object. Check it in base workspace or your Simulink Data Dictionary. The number 2 Outport block "Tracks" is specified to have that bus. Now, it seems that the actual signal connected to that Outport block does not have any bus element.

[Edward Cheng]

Thank you for your comment and I will give a it try.

But I'm wondering if there is a signal conversion block or where I can control the signal with/without containing bus element

[Fangjun Jiang]

Use BusCreator and BusSelector block to interface between Bus and signal elements

Change the data type of the Outport block to change from "Bus: <object name>" to any other data type.

[Edward Cheng]

Hi Fangiun,

I really appreciate your assistance. I try to make my model run with you suggestions and I'm building this for my master project. I'm wondering if it's possible to send you my model and please take a look at it when you are available.

Thank you so much!

Regards,

Edward