Welcome to the Treehouse Community
The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.
Leo Novel1,471 Points
Task one is getting invalidated. I try in my own Xcode playgrounds and it works.
What am I doing wrong?
// Enter your code below var arrayOfInts = [1, 2, 3, 4, 5, 6] arrayOfInts.append(7) arrayOfInts.append(8) arrayOfInts += 
Looking at the question, the challenge tests will be expecting an array with 8 elements in it after this task. Yours has 9.
If you remove one of you append lines, your code is fine.