我得到的错误是
/ Users / paulwroe / Projects / Project / iOS / MTOUCH:错误MT2023:绑定优化器无法处理System.Void AVFoundation.AVAssetImageGenerator::GenerateCGImagesAsynchronously(Foundation.NSValue[],AVFoundation.AVAssetImageGeneratorCompletionHandler)
。 (MT2023)(Project.iOS)