Wpf 找不到ToastContentBuilder
我正在尝试在我的Windows应用程序中使用toast通知，我正在使用以下代码Wpf 找不到ToastContentBuilder,wpf,windows,winforms,.net-core,uwp,Wpf,Windows,Winforms,.net Core,Uwp,我正在尝试在我的Windows应用程序中使用toast通知，我正在使用以下代码 new ToastContentBuilder() .AddText("Hello"); 但我得到了以下错误 error CS0246: The type or namespace name 'ToastContentBuilder' could not be found (are you missing a using directive or an assembly referenc
new ToastContentBuilder()
.AddText("Hello");
error CS0246: The type or namespace name 'ToastContentBuilder' could not be found (are you missing a using directive or an assembly reference?)
using Microsoft.Toolkit.Uwp.Notifications;