Please note: this article is part of the older "Objective-C era" on Cocoa with Love. I don't keep these articles up-to-date; please be wary of broken code or potentially out-of-date information. Read "A new era for Cocoa with Love" for more. When an application crashes on the iPhone, it disappears without telling the user what happened. However, it is possible to add exception and signal handling
![Handling unhandled exceptions and signals](https://cdn-ak-scissors.b.st-hatena.com/image/square/1dba7c769e81a8762bac0f0ad321af15f9211023/height=288;version=1;width=512/https%3A%2F%2Fwww.cocoawithlove.com%2Fassets%2Fsite%2Ftouch_heartandcup.png)