Xamarin Microcharts 错误：命名空间“Microcharts”中不存在类型或命名空间名称“Entry”

如何解决Xamarin Microcharts 错误：命名空间“Microcharts”中不存在类型或命名空间名称“Entry”

我尝试从 microcharts 显示图表，但收到此错误：

/Users/pizhev/Documents/WeatherLocationInfo 1.6.8/WeatherLocationInfo/MainPage.xaml.cs(27,27): Error CS0234: The type or namespace name 'Entry' does not exist in the namespace 'microcharts' (are you missing an assembly reference?) (CS0234) (WeatherLocationInfo)

我关闭了这个链接：Tutorial，两个月前这个方法效果很好。

所以当我尝试改变时：

using Entry = microcharts.Entry;

到

using Entry = microcharts.ChartEntry;

我收到很多这样的错误：

/Users/pizhev/Documents/WeatherLocationInfo 1.6.8/WeatherLocationInfo/MainPage.xaml.cs(243,243): Error CS1503: Argument 2: cannot convert from 'Xamarin.Forms.Entry' to 'microcharts.ChartEntry' (CS1503) (WeatherLocationInfo)

还有这个：

/Users/pizhev/Documents/WeatherLocationInfo 1.6.8/WeatherLocationInfo/MainPage.xaml.cs(44,44): Error CS1061: 'ChartEntry' does not contain a deFinition for 'Text' and no accessible extension method 'Text' accepting a first argument of type 'ChartEntry' Could be found (are you missing a using directive or an assembly reference?) (CS1061) (WeatherLocationInfo)

那么 microcharts 中发生了什么变化，我该如何修复这些错误？