Azure Functions error - Cannot bind parameter to type String
问题 I am trying to save files to FTP by using an Azure Function. The json is this: { "type": "apiHubFile", "name": "outputFile", "path": "{folder}/ps-{DateTime}.txt", "connection": "ftp_FTP", "direction": "out" } The function code is this: public static void Run(string myEventHubMessage, TraceWriter log, string folder, out string outputFile) { var model = JsonConvert.DeserializeObject<PalmSenseMeasurementInput>(myEventHubMessage); folder = model.FtpFolderName; outputFile = $"{model.Date.ToString(