Warning: Failed prop type: Invalid prop `history` of type `function` supplied to `Router`, expected `object`. 2017年4月9日 2154 × 92 【react-router@3.x→4.x】動かない。。アップデートで困っている人が読む記事(how to update react-router3.x vs 4.x) Warning: Failed prop type: Invalid prop `history` of type `function` supplied to `Router`, expected `object`. Warning: Failed prop type: Invalid prop `history` of type `function` supplied to `Router`, expected `object`.