Getting Error “Internal error while creating code interface description file: codeInfo.mat. Aborting code generation. Caused by: Invalid index” during code generation.

I am trying to pass some data between two atomic subsystem using a Bus.

When I am trying to generate the code getting the error “Internal error while creating code interface description file: codeInfo.mat. Aborting code generation.

Caused by:

Invalid index”.

If I dont use bus and only use outport to directly exchange, then the code generation is not giving any problem. Pleas help.

Answer 1

[Dhruv]

I understand that you are encountering an error during code generation in Simulink related to an "Invalid index." The issue encountered is a known bug in MATLAB release R2021a. You can find more information about it here: https://in.mathworks.com/support/bugreports/2637595

To address this issue, I recommend updating your MATLAB installation to the latest version, as the bug has been resolved in recent updates.

[可华]

Hi Dhruv , As can be seen from the comments below, it seems we will also encounter this issue in 2022b and 2023a. Is it because there is an issue with our Simulink model? Or this bug has not been completely resolved.

Answer 2

[satyam thakur]

I am too facing simillar issue using autosar coder in 2022b version simulink ut it goes away if i use ert.tlc.

The error is:

Internal error while creating code interface description file: codeInfo.mat. Aborting code generation.

Caused by:

• Index exceeds the number of array elements. Index must not exceed 0.

[승현]

Hello.

Did you solve this issue??

If you did, Could you share me how to solve this issue?

Thankyou :)

[rina wu]

I also facing this issue. Look forward to your answer. Thank you!

[Saleh Mirheidari]

I have the same problem with 2023a. Is this bug fixed? What is the workarond? Not using mux is not an option for me as I am dealing with a very large model with a lot of muxed signals

[可华]

I also encountered this error in 2022b, I am using ert.tlc

Hope someone finds a solution.

[Cornelius]

I had the same issue with Matlab 2024b. Deleting temporary code generation files (slprj, etc.) worked to get rid of the error.