配置文件中
{'storageMap' => ['user_credentials' => 'backend\models\User',]}
我把改成common\models\User（我这有这个文件）继承了UserCredentialsInterface并实现了checkUserCredentials和getUserDetails方法：

class User extends ActiveRecord implements IdentityInterface,UserCredentialsInterface
{
    const STATUS_DELETED = 0;
    const STATUS_ACTIVE = 10;
    ...
    public function checkUserCredentials($username, $password)
    {
        $user = static::findByUsername($username);
        if(!$user){
            return false;
        }
        return $this->validatePassword($password);
    }

    public function getUserDetails($username)
    {
        $user = static::findByUsername($username);
        return ['user_id' => $user->getId()];
    }
   }

但还是提示错误：

{
    "name": "Exception",
    "message": "Argument 1 passed to OAuth2\\Server::verifyResourceRequest() must be an instance of OAuth2\\RequestInterface, instance of yii\\web\\Request given, called in D:\\phpStudy\\WWW\\advanced\\vendor\\filsh\\yii2-oauth2-server\\Server.php on line 31",
    "code": 0,
    "type": "TypeError",
    "file": "D:\\phpStudy\\WWW\\advanced\\vendor\\bshaffer\\oauth2-server-php\\src\\OAuth2\\Server.php",
    "line": 423,
    "stack-trace": [
        "#0 D:\\phpStudy\\WWW\\advanced\\vendor\\filsh\\yii2-oauth2-server\\Server.php(31): OAuth2\\Server->verifyResourceRequest(Object(yii\\web\\Request), NULL, NULL)",
        "#1 D:\\phpStudy\\WWW\\advanced\\vendor\\filsh\\yii2-oauth2-server\\filters\\auth\\CompositeAuth.php(15): filsh\\yii2\\oauth2server\\Server->verifyResourceRequest()",
        "#2 D:\\phpStudy\\WWW\\advanced\\vendor\\yiisoft\\yii2\\base\\ActionFilter.php(77): filsh\\yii2\\oauth2server\\filters\\auth\\CompositeAuth->beforeAction(Object(yii\\base\\InlineAction))",
        "#3 [internal function]: yii\\base\\ActionFilter->beforeFilter(Object(yii\\base\\ActionEvent))",
        "#4 D:\\phpStudy\\WWW\\advanced\\vendor\\yiisoft\\yii2\\base\\Component.php(627): call_user_func(Array, Object(yii\\base\\ActionEvent))",
        "#5 D:\\phpStudy\\WWW\\advanced\\vendor\\yiisoft\\yii2\\base\\Controller.php(274): yii\\base\\Component->trigger('beforeAction', Object(yii\\base\\ActionEvent))",
        "#6 D:\\phpStudy\\WWW\\advanced\\vendor\\yiisoft\\yii2\\web\\Controller.php(164): yii\\base\\Controller->beforeAction(Object(yii\\base\\InlineAction))",
        "#7 D:\\phpStudy\\WWW\\advanced\\vendor\\yiisoft\\yii2\\base\\Controller.php(155): yii\\web\\Controller->beforeAction(Object(yii\\base\\InlineAction))",
        "#8 D:\\phpStudy\\WWW\\advanced\\vendor\\yiisoft\\yii2\\base\\Module.php(528): yii\\base\\Controller->runAction('user-menu', Array)",
        "#9 D:\\phpStudy\\WWW\\advanced\\vendor\\yiisoft\\yii2\\web\\Application.php(103): yii\\base\\Module->runAction('rbac/menu/user-...', Array)",
        "#10 D:\\phpStudy\\WWW\\advanced\\vendor\\yiisoft\\yii2\\base\\Application.php(386): yii\\web\\Application->handleRequest(Object(yii\\web\\Request))",
        "#11 D:\\phpStudy\\WWW\\advanced\\api\\web\\index.php(18): yii\\base\\Application->run()",
        "#12 {main}"
    ]
}

这个怎么解决啊？