Creating traceability links is not supported for objects in Simulink built-in libraries

Getting the exception

Error using slreq.createLink

Link creation failed.

Caused by:

Error using slreq.createLink

Creating traceability links is not supported for objects in Simulink built-in libraries

When calling slreq.createLink with a System Composer component object as the first argument, and a struct as the second argument. Also tried using requirement as the second arg, but still getting the exception.

As I understand it, this error is thrown when you try to link library components, but this component is from a newly created System Composer model.

Any idea what might be the issue? Tried this on both R2024b and R2025a.

Edit: An interesting thing I just noticed is that this error does not occur when the model hasn't been saved yet. Only after you save the model does it occur.

[Josh Kahn]

How are you getting the component object? Does this work for you?

model = systemcomposer.createModel('MyArchModel');
save(model);
component = model.Architecture.addComponent('MyComponent');
requirementSet = slreq.new('MyRequirementSet');
requirement = requirementSet.add(Summary='MyRequirement');
link = slreq.createLink(component, requirement);

[Piyush]

Hey Josh,

I found out the issue. For anyone who encounters it in the future, It was because the slx file was present in the Matlab/bin folder. Loading a model from the Matlab installation directory seems to break the linking, Moving the model elsewhere seems to fix the issue.

Thanks a lot!

[Josh Kahn]

Ah, glad you got it figured out!

Josh

Answer 1

[Josh Kahn]

"It was because the slx file was present in the Matlab/bin folder. Loading a model from the Matlab installation directory seems to break the linking, Moving the model elsewhere seems to fix the issue."