How to simply identify a line throwing an exception?

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Stephane R asked Oct 30, '19 Phil BoBo edited Oct 30, '19

How to simply identify a line throwing an exception?

I found that awesome post from 2017: https://answers.flexsim.com/idea/45154/proper-exception-handling-in-flexscript.html

I'm new to FlexSim, but not to coding. This is exactly the struggle I have today. Stepping line by line is good advice, unless the function is recursive, and the exception happens deep inside.

Has anything been improved in FlexSim between 2017-2019, to enable breakpoints on exceptions, exception catching in code, or just more precise context/display of the line throwing the exception ?

Software Version:

FlexSim 19.0.6

flexscript debugging exceptions

Answer 1 · 2019-10-30T21:22:29Z

Phil BoBo answered Oct 30, '19 Phil BoBo edited Oct 30, '19

Nothing has changed with regards to FlexScript exception handling since that card was created.

If step-debugging isn't working well for you, you could try using mpt() commands to print to the System Console to help narrow down the source of the exception.

For the most part, the exception handling mechanism that FlexScript already uses, which catches exceptions and prints the details to the System Console, works well for debugging these types of errors. If a specific case isn't giving useful information, you could create an example of the error situation and email it to [email protected] for us to attempt to improve the error message to make it easier to find and fix that type of error in future versions.

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