Hi, I am new to swift and am faced with a similar problem to solve. Your code seems to work for me except for your last line when you type: self.frames.append(UIImage(cgImage: image)). When I use the line of code in my app, i get the error message: Type 'FrameExtract' has no member 'frames'. I assume that this only worked with a previous version of Swift. Do you know what I could do to make this work with the most recent version of Swift? Thank you in advance for your help.