iOS 12 Programming for Beginners - Third Edition

iMessage crashing 

This may or may not happen to you, but if you just tried to launch the app and it crashed, there is a fix for this:

1. In the simulator, open the Messages app
2. Select Kate
3. Click on the icon with three dots:

4. Click Edit:

5. Click the switch for MessageApp:

6. Click Done.

Build and rerun the app, and you should be fine. This error is an Apple bug, and performing these steps is the only way to fix this issue. Let's move on to sending ...