I have some custom controls I have created and I'm them using in a new project. However, I keep getting errors in interface builder:
Failed to update auto layout status: Failed to load designables from path (null)
Failed to render instance of <control>: Failed to load designables from path (null)
I had the same issue. I use cocoapods and there is a pod which uses designables. So the trick was to add 'use_frameworks!' to the Podfile. do a 'pod update' reopen the xcode project and the error message shouldn't show up.