unknown pattern color for the background color attribute

Question

Getting the compiler warning:

Unsupported Configuration: 
Unknown pattern color for the Background Color attribute

on my xib when trying to set the background color of a UIView to clear in interface builder. I swear I've made a UIView clear in the past without any trouble. Google isn't giving me anything useful. I feel like there is a head-slapping-simple answer here but after 14 hours at the keyboard (not on this issue) my tired mind isn't figuring it out.

Answer 1

I had lot of problem with the same issue. I solved this by this way "select the UIView in interface builder, background color first set default color in option and build it".

Answer 2

I started getting this warning after updating to Mavericks and Xcode 5.1.1

I read elsewhere that the clearColor was the cause of this warning but in my case it was a pattern very similar to the standard Apple dark grey style background you see after updating an iPhone. No idea how it got there, don't remember ever asking for a pattern rather than a color nor how to select a pattern in the color selector popup. Perhaps it was chosen by IB because something in my original code was missing.

I changed it to Default, rebuilt and the warning has not returned. The only problem was going through each UIView until I found the one causing the warning because the background preview dropbox control in attributes is tiny.

Once aware of it, the pattern can be seen instead of a color