I'm running into trouble when I try to install MvvmCross.Forms on my Project.Core project. To give as much information as possible, I'll share a step by step guide to how I setup my project.
Step 1: Open VS2017 and click Create new project....
Step 2: Select Cross Platform App (Xamarin), Enter a name, and click OK.
Step 3: Select Blank App, Under UI Technology select Xamarin.Forms, Under Code Sharing Strategy select Portable Class Library (PCL), and click OK.
Step 4: A window pops up to select the target version for the UWP, select Target Version Windows 10 Creators Update (10.0; Build 15063), and Minimum Version Windows 10 November Update (10.0; Build 10586). Click OK.
Step 5: Right click Solution, select Manage NuGet Packages for Solution..., update all packages that have newer versions.
Step 6: On the Manage Packages for Solution page click Browse. In the search bar type MvvmCross.StarterPack. Install on all projects.
Step 7: In the search bar type MvvmCross.Forms. Install on all projects.
MvvmCross.Forms installs on Project.Android, Project.iOS, and Project.UWP. When installing on the Project.Core project the task fails with the following error message (Could not install package 'MvvmCross.Forms 5.1.1'. You are trying to install this package into a project that targets '.NETPortable,Version=v4.5,Profile=Profile259', but the package does not contain any assembly references or content files that are compatible with that framework.)
Any help is much Appreciated.