Time object cannot be empty

When I built the code use grt. It caused error:

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

Caused by:

• Time object cannot be empty

How can I solve the problem and what the reason?

[Pavan Guntha]

Could you provide more information regarding the tool used to generate the code and attach the model/ code for debugging ?

[Zihao Liu]

I try to build DblLaneChange in matlab and try to export it as c++ code. After changes it as a discrete time model and try to build. Then it causes the error:

• Time object cannot be empty

Thanks for your reply.

[Alex Vicente]

Hi @Liu,

Did you manage to solve it? I am having this error right now when tring to build my code.

Regards,

Alex

[Daniela Yamashita]

Hello, I have the same problem as well. I would be glad to know how to solve this problem

[Onkar Vader]

Do we have answer to this problem? The error statment is so vague, it is little difficult find root cause.

[Soham Sinha]

Have the same problem.

Internal error while creating code interface description file: codeInfo.mat. Aborting code generation.
Caused by:
Time object cannot be empty 

[Jeffrey]

I have the same problem. Is there a solution yet? It is not an issue of having duplicate codeInfo.mat files as stated in the answers.

Answer 1

[Morgan Fremovici]

First verify that there are no duplicate "coderInfo.mat" files on the MATLAB path by entering the command

>> which codeInfo.mat -all

If there are more than one instances of this file, remove the one unrelated to the project from the path and try code generation again.

Answer 2

[Philipp Kühl]

The same problem occured for me, when I was compiling Simulink Models into C code using Embedded Coder. Since I was varying the subsystems I used Embedded Coder for, each time a new subfoulder was created in my current directory (name: "subsystemname_rtw"). They all contained a "codeInfo.mat". After I deleated the created folders, the error disappeared.

I assume that

>> which codeInfo.mat -all

and deleting all leftovers is a more elegant way, but the command just gave me an error. That's why I didn't know where to look for "codeInfo.mat"

Answer 3

[Francesco]

Hi all. We have the same issue also without others codeInfo.mat in the Matlab. We are building a model for real-time target. Did someone find out a definitive resolution to this problem?

Thanks in advance

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

Caused by:

• Time object cannot be empty 

Answer 4

[Aditya]

Hi All,

matlab version: 2023b

I am modeling in simulink to run on imperix hardware. I am getting similar error. the model was running smoothly until this week. Now multiple different versions of my model are showing this error (these models were building before and succesfully running).

I tired deleting slprj and build folder, still this error exists.

>> which codeInfo.mat -all

'codeInfo.mat' not found.

seems like it is not even found.