Storyboard View Elements Greyed Out
The problem is probably related to Size Classes. If you have the option enabled make sure that the views were created for the size class that you have currently selected in IB (the grid thing).
If you want to make sure it works with any width and height, find the constraint:
and remove it by clicking on the x, leaving only installed checked:
I think Xcode will stop adding these automatically if you set the view to Any Width | Any Height in the Storyboard:
Check that Installed is checked at the bottom of the Attributes Inspector
