Xcode 6.0.1 with iOS 8.1 , can't select iPhone 6+ device

Question

I've got my iPhone 6+ for dev with iOS 8.1.
My application is iOS8 compatible with minimum iOS target version to 7.0.

With Xcode 6.0.1, I can't select the 7.0.x simulator anymore and can't run my app on my device.

Googled it but can't find and answer.

Answer 1

Solution found.

I had to update to Xcode 6.1, because, as Petesh said, Yosemite not supporting 7.0 simulator.