Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Build a Simple iPhone App (iOS7) Animating and Intercepting Events Image Based Animation


After completing the steps to animate the image, I tried to run the animation and as soon as the build succeeded, it collapsed saying:

Thread 1: signal SIGABRT.

The Error console message was:

2014-04-07 19:12:57.793 CrystalBall[11525:a0b] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -.

Can you please help me?