Reference: https://docs.microsoft.com/en-us/visualstudio/msbuild/customize-your-build
FileName: Directory.Build.props
<?xml version="1.0" encoding="utf-8" ?>
<Project>
<Import Project="$([MSBuild]::GetPathOfFileAbove('Directory.Build.props', '$(MSBuildThisFileDirectory)../'))" />
</Project>
FileName: Directory.Build.props
<?xml version="1.0" encoding="utf-8" ?>
<Project>
<!-- Override common build properties -->
<PropertyGroup>
<LangVersion>latest</LangVersion>
<NoWarn>$(NoWarn);CS1998;</NoWarn>
</PropertyGroup>
</Project>