You can ignore this message, as it does not prevent the project from building correctly.
Note that with the C# template, you might get the error message 'Output type 'Console Application' is not supported by one or more of the project's targets'. The C# template will only work with Visual Studio 2017 Version 15.7 or later. The following notes apply to all releases: A set of project templates for C++/CX, C++/WinRT and C#, for building Universal Console Apps.
