How to debug "mysterious" Simulink errors?

Hello,

every now and then I discover very mysterious Simulink Errors that don't state where the problem occured. E.g.:

Last week I even got a message that only said " ****Error**** ".

In all the above cases of course I didn't have any variables called X,x or k...

Since the Simulink model I'm working on is pretty big, it is very frustrationg to look for a solution to these error-messages. And even though I know what I changed about the modell, these errors may occure somewhere that isn't close to what I've changed...

What I want to know is, if there are any guidelines or tipps on how to solve errors like this? What do you do when you encounter these kind of issues?

Thank you,

Timmy

Answer 1

[Dimitry Markman]

try the following

instead of start simulation from the menu

start simulation from the command line

try; sim(bdroot); catch E;end

take a look at E, at least it will give you error ID

so you can use ID for reporting to Mathworks support

thanks

Answer 2

[PIYUSH AGGARWAL]

Try making your model fixed step auto in the config settings and then check for Simulink Design Verifier compatibility. Then try to detect design errors and overflows in model logic using SLDV. SLDV can directly help you in indentifying where the problem in your model is. But as you said your model is very large, Do make sure that you are not using any SLDV incompatible block in your model.

https://in.mathworks.com/products/sldesignverifier.html

Hope this Helps!

Thank you