If you’re using latest xcode and for iOS 8 you’re developing an app that has views inside views or with pickerviews and you need to animate them using pickerviewcontainer.frame = CGMakeRect(x,y,w,h); and it’s not animating, then it’s because of autolayout. So, if you’re making it for an iPhone just and don’t want to use autolayout… Read More »
setValue:forUndefinedKey Check Referencing outlets. They may be connected wrong, causing this error. Disconnect them and then build again.