interface builder - Attribute Unavailable warning on iOS versions prior to 8.0

Question

What's causing this warning in the interface builder?

Attribute Unavailable Layout attributes relative to the layout margin on iOS versions prior to 8.0.

I'm using the XCode 6 Beta. The warnings are pointing to lines in the xml source that do not concern attributes.

Answer 1

Since I had already created the constraints, the answer was to click on the constraint, and then look in the Utilities bar (on the right). As shown in the picture below, click on an item and then make sure that "relative to margin" is unchecked.