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 with Swift View Controllers and Views Designing With Interface Builder

Not running app correctly

When I press the run button to show a simulation of the app, Xcode just reads "build successful" and doesn't actually show me the app. Occasionally a white screen will pop up or a black one with the safari and iMessage icon on it. An idea how I could fix this? Thanks, Noa

3 Answers

Jeff McDivitt
Jeff McDivitt
23,970 Points

Sometimes Xcode has bugs, just see if shutting it down and restarting it fixes the issue.

Andrew Shook
Andrew Shook
31,709 Points

Jeff, I moved you comment to a full answer, since I felt like you should get credit for it.

If you have Xcode 8, update it to the newest version 8.3.3 in the apple developer website. If Xcode is running slow, you might want to buy a faster/ newer Mac. A Mac with a quad core cpu is better in my experience.

Jeff McDivitt
Jeff McDivitt
23,970 Points

Andrew - How do you become a treehouse moderator?

Andrew Shook
Andrew Shook
31,709 Points

Treehouse contacted me about being a moderator. I'm not entirely sure what their criteria is for picking mods. You could always try to contact support and ask.