The type or namespace name 'Http' does not exist in the namespace 'System.Net' (are you missing an assembly reference?) [CSharpDll]csharp(CS0234)<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">, and I need to keep it like that. Do I have to find a workaround?