Cannot register run-time parameter for dialog parameter XX for S-function 'sf_sfun' error while compiling simulink model with stateflow chart

I am developing a simulink model which includes a stateflow chart, while doing an update diagram, I am getting the following error.

Cannot register run-time parameter for dialog parameter 15 for S-function 'sf_sfun' in XXModule Stateflow chart nameXX because the dialog parameter is empty. The same error exists for different dialog parameter numbers. Is it something related to data dictionary, and where do I find the dialog parameter numbers?

[Roberto Paolinelli]

So am I... ;(

Did you solve it?

[danming]

anyone has solved this issue?

[Muhammad]

Following up as well. Any luck anyone?

[Brice]

Bump - Any possible solutions yet?

[Arnaud]

Same, is it a bug ? I'm using MatlaB 2022B, impossible to find which data stateflow refer to. Only way seems to restart from scratch.

Answer 1

[Yunhan Zhao]

You need to check your simulink parameter. Which the Datatype shall not be auto and the value shall be []