无法push_back向量中的unique_ptr

我在使用此代码时出错：

void Game::changeState(gameState type) // gameState is an enum
{
   if (!states.empty()) // deleting the last state
   {
       states.back()->clean();
       states.pop_back();
   }

   switch(type)
   {
       case editorState:
       {
           states.push_back(std::move(std::unique_ptr<EditorState> (new EditorState)));
           states.back()->init();
           break;
       }
       case menuState:
       {
           states.push_back(std::move(std::unique_ptr<MenuState> (new MenuState)));
           states.back()->init();
           break;
       }

   }
}

矢量：

std::vector<std::unique_ptr<GameState>> states;

错误消息：

c：\ program files（x86）\ codeblocks \ mingw \ bin .. \ lib \ gcc \ mingw32 \ 4.7.1 \ include \ c \ bits \ _ unique_ptr.h ||实例化'void std :: default_delete <Tp > :: operator（）（ Tp *）const [with _Tp = GameState]':. c：\ program files（x86）\ codeblocks \ mingw \ bin .. \ lib \ gcc \ mingw32 \ 4.7.1 \ include \ c \ bits \ unique_ptr.h | 245 |'void std :: unique_ptr <_Tp， _Dp> :: reset（std :: unique_ptr <_Tp，_Dp> :: pointer）[with _Tp = GameState; _Dp = std :: default_delete; std :: unique_ptr <_Tp，_Dp> :: pointer = GameState *]'| c：\ program files（x86）\ codeblocks \ mingw \ bin .. \ lib \ gcc \ mingw32 \ 4.7.1 \ include \ c \ bits \ unique_ptr.h | 169 |'std :: unique_ptr <_Tp，_Dp > ::〜unique_ptr（）[with _Tp = GameState; _Dp = std :: default_delete]'| c：\ program files（x86）\ codeblocks \ mingw \ bin .. \ lib \ gcc \ mingw32 \ 4.7.1 \ include \ c \ bits \ stl_construct.h | 95 |'void std :: _ Destroy（_Tp * ）[with _Tp = std :: unique_ptr]'| c：\ program files（x86）\ codeblocks \ mingw \ bin .. \ lib \ gcc \ mingw32 \ 4.7.1 \ include \ c \ bits \ stl_construct.h | 105 |'static void std :: _ Destroy_aux <> :: __ destroy（_ForwardIterator，_ForwardIterator）[with _ForwardIterator = std :: unique_ptr *; bool = false]'| c：\ program files（x86）\ codeblocks \ mingw \ bin .. \ lib \ gcc \ mingw32 \ 4.7.1 \ include \ c \ bits \ stl_construct.h | 128 |'void std :: _ Destroy（_ForwardIterator， _ForwardIterator）[with _ForwardIterator = std :: unique_ptr *]'| c：\ program files（x86）\ codeblocks \ mingw \ bin .. \ lib \ gcc \ mingw32 \ 4.7.1 \ include \ c \ bits \ stl_construct.h | 155 |'void std :: _ Destroy（_ForwardIterator， _ForwardIterator，std :: allocator <_T2>＆）[with _ForwardIterator = std :: unique_ptr *; _Tp = std :: unique_ptr]'| c：\ program files（x86）\ codeblocks \ mingw \ bin .. \ lib \ gcc \ mingw32 \ 4.7.1 \ include \ c \ bits \ stl_vector.h | 403 |'std :: vector <_Tp，_Alloc > ::〜vector（）[with _Tp = std :: unique_ptr; _Alloc = std :: allocator>]'| ... \ game.h | 15 |从这里要求| c：\ program files（x86）\ codeblocks \ mingw \ bin .. \ lib \ gcc \ mingw32 \ 4.7.1 \ include \ c \ bits \ unique_ptr.h | 63 |错误：'sizeof'无效应用于不完整类型“游戏状态” | || ===构建完成：1个错误，12个警告（0分钟，1秒）=== |

上面的代码在我使用默认指针时有效，但是当我使用unique_ptr时它会给我上面的错误...

EDIT: 这是game.h：http://pastebin.com/DiBbXrC6和游戏状态：http://pastebin.com/JD3VrktJ