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 trial2 Answers
Stone Preston
42,016 Pointsyou need to declare a variable of type id and set it equal to nil ( = nil;). you do this just like you would declare an int or float variable, except this time the type is id instead of int.
Mohammad AL-Awadhi
852 Pointsit helps thanks for your support