xamarin：System.TypeLoadException：无法使用标记01000017解析类型

Question

我有一个Xamarin Forms解决方案，其中包含每个项目。我收到此错误。请帮助......提前谢谢

public partial class App : Application
{
 AlarmAccount_Loggly _AlarmAccount_Loggly = new AlarmAccount_Loggly();       
    public App()
    {            
            var logTransport = LogTransport.Http;
            _AlarmAccount_Loggly.SendWithSpecificTransport(logTransport);
        }