编译不通过，Build Failed！4个错误，都在OSSSpeech.swift里。

[HoodL]

OSSSpeech.swift里编译报错了，4个错误。其中546行： if let speechRecognizer, !speechRecognizer.isAvailable {
报错：Variable binding in a condition requires an initializer
511行： input.installTap(onBus: bus, bufferSize: 8192, format: recordingFormat) { [weak self] (buffer, ) -> Void in
报错：Unable to infer type of a closure parameter '' in the current context、Unable to infer type of a closure parameter 'buffer' in the current context

[crazypoo]

可能你的xcode版本太低了