Error when using (self created) library block in a model

I have created a block in a library.

This block works (correct / expected behavior) when I try it in library directly.

But when I import the block in a model, I got error: parameter callback errors.

The block behavior is to modify its content (remove or add block inside) according to parameter values.

It can works in model if i cut the link to the library, but after I got lot of warning from advisor ...

Answer 1

[Yohann GOYER]

I got answer from matlab support and I share it here.

In fact the code was in the parameter callback.

But the code shall be place under intitialize callback instead.

After doning that, block works without problem.

Answer 2

[Fangjun Jiang]

Follow this.

https://www.mathworks.com/help/simulink/ug/parameterized-links-and-self-modifiable-linked-subsystems.html

If possible, don't do delete_block() and add_block(). Using replace_block() might work.