✅ Newtonsoft.Json JsonSerializationException

private async Task LoadData()
 {
 var clientJson = System.IO.File.ReadAllText(clientDataPath);
 Classes.Spark.DebugLog(clientJson);
 var clientData = JsonConvert.DeserializeObject<ClientData(clientJson);
}

public class ClientData
{
    public string Client_ID { get; set; }
    public string Client_Secret {  get; set; }

    public string Refresh_Token { get; set; }
    public string Access_Token { get; set; }
}

private async Task LoadData()
 {
 var clientJson = System.IO.File.ReadAllText(clientDataPath);
 Classes.Spark.DebugLog(clientJson);
 var clientData = JsonConvert.DeserializeObject<ClientData(clientJson);
}

public class ClientData
{
    public string Client_ID { get; set; }
    public string Client_Secret {  get; set; }

    public string Refresh_Token { get; set; }
    public string Access_Token { get; set; }
}