internal MSBuildConstruction.ProjectExtensionsElement GetProjectExtensions()
{
var extensionsElement = this.buildProject.Xml.ChildrenReversed.OfType<MSBuildConstruction.ProjectExtensionsElement>().FirstOrDefault();
if (extensionsElement == null)
{
extensionsElement = this.buildProject.Xml.CreateProjectExtensionsElement();
this.buildProject.Xml.AppendChild(extensionsElement);
}
return extensionsElement;
}