[iOS] Header files not found after cocoaPods updated to 1.0

Days ago I update pod to version 1.0. Then found all header not found in my header bridge file. I spent 2 days to locate the reason. That is cocoaPods.
Thanks to Git, I noticed that Header folder was be deleted after I run pod install which pod 0.x did not do that.
What pod 1.0 do is that I don’t need import headers explicitly any more. Pod do that.
So what I need to do is DELETE all import statement which not found. That will fix everything.