class Xcodeproj::Project::Object::PBXFileReference

def remove_from_project
  if project_reference = project_reference_metadata
    file_reference_proxies.each(&:remove_from_project)
    target_dependency_proxies.each(&:remove_from_project)
    project_reference[:product_group].remove_from_project
    project.root_object.project_references.delete(project_reference)
  end
  super
end