Xcode cannot run using the selected device error in iOS 8

Question

I tried to run my iOS app on iPhone 5 using Xcode, but when I connected it, the iPhone didn't show up in the top-left selection pane. And also when I ran the app from within Xcode, the error: Xcode cannot run using the selected device error occurred.

After that, I found that my iPhone was not even found in the organizer; it was there previously. However, after upgrading my OS X to Yosemite beta and iPhone to iOS8 (officially released version of iOS 8), everything doesn't work any more...

The last time I was able to run my apps on iPhone is 5 months ago, so I'm not sure when there's something wrong occurred during the period...

I cleaned and rebuilt the app, and restarted Xcode, but nothing worked.

I also confirmed that I use Default compiler in Build Options 's compiler settings.

So what am I missing?

Answer 1

I had same problem. Problem is that your xcode is running on v.5 and there is no option to choose iOS 8 as device system. Try to update your xcode over appstore to v.6