Explanation of "Assertion failed port already connected to signal error" when generating using HDL Coder?

Full error below:

Assertion failed: B:\matlab\src\cgir_hdl\dom_pir_core\pirsignal.cpp:528:Error: port <Port Name="nfp_in", Kind="data", Index = 0, Comp= "NetworkInPorts", Network= "n292"/> already connected to a signal

[Bharath Venkataraman]

Would you be able to attach your model so that we can debug this further?

[Les Wang]

I am unable to share the full model but I've attached snippets of the model that is giving me issues. The error_model is the one that throws the mentioned error. The working_model does not throw an error and is able to be fully generated by HDL Coder.

Thank you!

Answer 1

[Kiran Kintali]

This is an unexpected internal error. Reported to the development team.

Can you let us know what version of MATLAB / HDL Coder are you using?

[Les Wang]

I am using MatLab R2021a and HDL Coder V3.18

Answer 2

[Kiran Kintali]

We are unable to reproduce the issue on our end with the attached models. Please reach out to support for additional help on this message.