Creating the UWP project

Create a new UWP project called MvvmCrossDemo.Uwp into the solution.
Probably, the default Target version is 1803(Build 17134), and make sure the Min version is Fall Creators Update (Build 16299) or higher. Because the lastest MvvmCross framework does not support the old version of Windows 10.
Install the MvvmCross package to the project through the NuGet Package Manager or the console. Like the Android project, add the reference to the MvvmCrossDemo.Core project. Then delete the MainPage.xaml and the MainPage.xaml.cs. We do not need them.