無法將類型“System.Threading.Tasks.Task ”隱式轉換為“string”

public static  Task<string> getMapName()
        {
            if (MapView.Active == null) return "";
            return QueuedTask.Run(() =>
           {
               return MapView.Active.Map.GetDefinition().Name;
           });


        }

修改為
public static  Task<string> getMapName()
        {
            if (MapView.Active == null) return Task.FromResult("");
            return QueuedTask.Run(() =>
           {
               return MapView.Active.Map.GetDefinition().Name;
           });


        }

 總結：return ""修改為return Task.FromResult("");