using System;

using System.Xml;

public class Program

{

    public static void Main()

    {

            //Declare the XML Document here

            XmlDocument Doc = new XmlDocument();

​

            //Load you xml here

            //Doc.LoadXml(TransportResponse.Response)

            Doc.LoadXml(@"<?xml version=""1.0"" encoding=""utf-8""?>

<Project ToolsVersion=""15.0"" xmlns=""http://schemas.microsoft.com/developer/msbuild/2003"">

  <ItemGroup>

    <ProjectReference Include=""..\ProjectReferencesToolkit.Core\ProjectReferencesToolkit.Core.csproj"">

      <Project>{6c167ddd-7ce8-4087-9f8c-6986145b97d1}</Project>

      <Name>ProjectReferencesToolkit.Core</Name>

    </ProjectReference>

  </ItemGroup>

  <Import Project=""$(MSBuildToolsPath)\Microsoft.CSharp.targets"" />

</Project>

");

​

    //I need to use contains here to only search for ProjectReferencesToolkit.Core.csproj

    var XPath = String.Format("//a:ProjectReference[@Include='{0}']","..\\ProjectReferencesToolkit.Core\\ProjectReferencesToolkit.Core.csproj");   

    var nsmgr = new XmlNamespaceManager(Doc.NameTable);

    nsmgr.AddNamespace("a","http://schemas.microsoft.com/developer/msbuild/2003");

    var node = Doc.SelectSingleNode(XPath, nsmgr);

Console.WriteLine(node.InnerXml);

    }

}