Why redbug can not trace the un-exported function? What should I set?

[tclugao]

as the following pic. the function handle is exported, and function select_option is not exported

[sebastiw]

Hi,
first of all you are running an old (more than 4 year old) version of redbug.

New syntax would be something in the style of

1> redbug:start(["nurse_call_callback_handler:select_option"], #{msgs => 1_000_000, time => 100_000}).

Anyway, without a minimal example or access to your module it is impossible to answer your question.

I would suggest two things: upgrade to latest redbug, or add the module nurse_call_callback_handler as example here.

[sebastiw]

please reopen if you have more issues.