Empty Controller[%e6%88%b7%e7%94%a8%e5%b8%82%e5%9c%ba%e8%bf%90%e7%ad%b9%e5%b8%b7%e5%b9%84%ef%bc%8c%e5%85%86%e8%83%bd%e8%8d%a3%e8%86%ba2017%e5%b9%b4%e5%ba%a6%e4%b8%ad%e5%9b%bd%e6%88%b7%e7%94%a8%e5%85%89-2] index