How do I make the debugger break when an exception is thrown in D?

[WebFreak001]

On Tuesday, 15 May 2018 at 10:50:15 UTC, Ethan Scott wrote:
> I constantly keep getting this error.
> Please help.

you can override the default exception handling to skip the 
global try/catch block and then GDB will halt instead of letting 
it run.

http://arsdnet.net/this-week-in-d/2016-aug-07.html

You can also add a breakpoint in a specific exception constructor 
or throw clause (for example find out line and column by browsing 
source) or check this forum post: 
https://forum.dlang.org/post/ucjzpvtpslyvskgykjxr@forum.dlang.org