class Xcodeproj::Project::Object::PBXProject

def to_hash_as(method = :to_hash)
  hash_as = super
  if !hash_as['packageReferences'].nil? && hash_as['packageReferences'].empty?
    hash_as.delete('packageReferences') if !hash_as['packageReferences'].nil? && hash_as['packageReferences'].empty?
  end
  hash_as
end