D:\a\AngleSharp.Css\AngleSharp.Css\src\AngleSharp.Performance.Css\AngleSharp.Performance.Css.csproj : warning NU1701: Package 'Alba.CsCss 1.0.1' was restored using '.NETFramework,Version=v4.6.1, .NETFramework,Version=v4.6.2, .NETFramework,Version=v4.7, .NETFramework,Version=v4.7.1, .NETFramework,Version=v4.7.2, .NETFramework,Version=v4.8, .NETFramework,Version=v4.8.1' instead of the project target framework 'net6.0'. This package may not be fully compatible with your project. [D:\a\AngleSharp.Css\AngleSharp.Css\src\AngleSharp.Css.sln]

D:\a\AngleSharp.Css\AngleSharp.Css\src\AngleSharp.Performance.Css\AngleSharp.Performance.Css.csproj : warning NU1701: Package 'ExCSS 2.0.6' was restored using '.NETFramework,Version=v4.6.1, .NETFramework,Version=v4.6.2, .NETFramework,Version=v4.7, .NETFramework,Version=v4.7.1, .NETFramework,Version=v4.7.2, .NETFramework,Version=v4.8, .NETFramework,Version=v4.8.1' instead of the project target framework 'net6.0'. This package may not be fully compatible with your project. [D:\a\AngleSharp.Css\AngleSharp.Css\src\AngleSharp.Css.sln]

D:\a\AngleSharp.Css\AngleSharp.Css\src\AngleSharp.Css\Dom\ICssStyleRule.cs(34,52): warning CS8632: The annotation for nullable reference types should only be used in code within a '#nullable' annotations context. [D:\a\AngleSharp.Css\AngleSharp.Css\src\AngleSharp.Css\AngleSharp.Css.csproj::TargetFramework=net461]

D:\a\AngleSharp.Css\AngleSharp.Css\src\AngleSharp.Css\Dom\ICssStyleRule.cs(34,52): warning CS8632: The annotation for nullable reference types should only be used in code within a '#nullable' annotations context. [D:\a\AngleSharp.Css\AngleSharp.Css\src\AngleSharp.Css\AngleSharp.Css.csproj::TargetFramework=net6.0]

D:\a\AngleSharp.Css\AngleSharp.Css\src\AngleSharp.Css\Dom\Internal\Rules\CssStyleRule.cs(93,59): warning CS8632: The annotation for nullable reference types should only be used in code within a '#nullable' annotations context. [D:\a\AngleSharp.Css\AngleSharp.Css\src\AngleSharp.Css\AngleSharp.Css.csproj::TargetFramework=net461]

D:\a\AngleSharp.Css\AngleSharp.Css\src\AngleSharp.Css\RenderTree\ElementRenderNode.cs(23,27): warning CS8632: The annotation for nullable reference types should only be used in code within a '#nullable' annotations context. [D:\a\AngleSharp.Css\AngleSharp.Css\src\AngleSharp.Css\AngleSharp.Css.csproj::TargetFramework=net461]

D:\a\AngleSharp.Css\AngleSharp.Css\src\AngleSharp.Css\RenderTree\RenderTreeBuilder.cs(38,138): warning CS8632: The annotation for nullable reference types should only be used in code within a '#nullable' annotations context. [D:\a\AngleSharp.Css\AngleSharp.Css\src\AngleSharp.Css\AngleSharp.Css.csproj::TargetFramework=net461]

D:\a\AngleSharp.Css\AngleSharp.Css\src\AngleSharp.Css\RenderTree\RenderTreeBuilder.cs(96,114): warning CS8632: The annotation for nullable reference types should only be used in code within a '#nullable' annotations context. [D:\a\AngleSharp.Css\AngleSharp.Css\src\AngleSharp.Css\AngleSharp.Css.csproj::TargetFramework=net461]

D:\a\AngleSharp.Css\AngleSharp.Css\src\AngleSharp.Css\RenderTree\TextRenderNode.cs(18,27): warning CS8632: The annotation for nullable reference types should only be used in code within a '#nullable' annotations context. [D:\a\AngleSharp.Css\AngleSharp.Css\src\AngleSharp.Css\AngleSharp.Css.csproj::TargetFramework=net461]

D:\a\AngleSharp.Css\AngleSharp.Css\src\AngleSharp.Css\Dom\Internal\Rules\CssStyleRule.cs(93,59): warning CS8632: The annotation for nullable reference types should only be used in code within a '#nullable' annotations context. [D:\a\AngleSharp.Css\AngleSharp.Css\src\AngleSharp.Css\AngleSharp.Css.csproj::TargetFramework=net6.0]

.NET 6.0 is no longer supported and will not receive security updates in the future. Please refer to https://aka.ms/dotnet-core-support for more information about the .NET support policy.