はじめに ios13でBluetooth接続を行おうとすると以下のエラーが出てしまいBluetooth接続を行うことができません。 2019-08-20 15:33:10.272060+0900 ControllerTest[453:62756] [access] This app has crashed because it attempted to access privacy-sensitive data without a usage description. The app's Info.plist must contain an NSBluetoothAlwaysUsageDescription key with a string value explaining to the user how the app uses this data. (lldb) 対処方法 Info.