I added a bannerView to a custom UI detailController view, wired it up to a property in the class's .h file then added
self.canDisplayBannerAds = YES;j to my implementation file. The banner works fine, but I'm getting several instances of <Error>: CGAffineTransformInvert: singular matrix in console every time I segue into the view. The app isn't crashing or producing any other kinds of error output, but I'm wondering whether I'm just storing up trouble for later in the day. The discussion here http://stackoverflow.com/questions/7471027/overriding-layoutsubviews-causes-cgaffinetransforminvert-singular-matrix-ran offered some good theoretical perspective, but if its correct, I'm not sure what I need to adjust. I suspect its something to do with the iAd banner wanting to redraw the content view, but as I say, the banner displays and works fine. The parent view is mostly empty at the moment, but I will be adding controls to it next. Another bunch of search results claim that this error message is/was a bug or (at least) an "oddness" associated with Storyboards. One remedy suggested switching off AutoLayout (see http://www.raywenderlich.com/forums/viewtopic.php?f=20&t=2793&start=120#p32794). However, I'm using Xcode 6 beta 3 and the new Size Classes option, which doesn't allow for AutoLayout being switched off. So, my apps not crashing, the banner ad is displaying, can I ignore it this message? Or am I going to be tearing my hair out over it further down the line? Thanks for your thoughts. Phil
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