HybirdAuth 用户配置文件请求失败

我正在使用带有 CakePHP 的 HybridAuth2，我的控制器功能为

public function loginwith($provider) {
        //        $this->autoRender = false;
        require_once( WWW_ROOT . 'hybridauth/Hybrid/Auth.php' );
        $hybridauth_config = array(
            "base_url" => 'http://' . $_SERVER['HTTP_HOST'] . $this->base . "/hybridauth/", // set hybridauth path
            "providers" => array(
                "Google" => array(
                    "enabled" => true,
                    "keys" => array("id" => "clientID", "secret" => "clientSecret")
                )
            )
        );
        try {
            // create an instance for Hybridauth with the configuration file path as parameter
            $hybridauth = new Hybrid_Auth($hybridauth_config);
            // try to authenticate the selected $provider
            $adapter = $hybridauth->authenticate($provider);
            // grab the user profile
            $user_profile = $adapter->getUserProfile();
            debug($user_profile); 
        } catch (Exception $e) {
            // Display the recived error
            switch ($e->getCode()) {
                case 0 : $error = "Unspecified error.";
                    break;
                case 1 : $error = "Hybriauth configuration error.";
                    break;
                case 2 : $error = "Provider not properly configured.";
                    break;
                case 3 : $error = "Unknown or disabled provider.";
                    break;
                case 4 : $error = "Missing provider application credentials.";
                    break;
                case 5 : $error = "Authentification failed. The user has canceled the authentication or the provider refused the connection.";
                    break;
                case 6 : $error = "User profile request failed. Most likely the user is not connected to the provider and he should to authenticate again.";
                    $adapter->logout();
                    break;
                case 7 : $error = "User not connected to the provider.";
                    $adapter->logout();
                    break;
            }
            // well, basically you should not display this to the end user, just give him a hint and move on..
            $error .= "Original error message: " . $e->getMessage();
            $error .= "Trace: " . $e->getTraceAsString();
            $this->set('error', $error);
        }
    }

混合身份验证库位于应用文件夹下的 Web 根文件夹中

但是，我收到的情况 6 中的错误，即

案例 6：$error ="用户配置文件请求失败。用户很可能没有连接到提供商，他应该再次进行身份验证。

确切的错误消息是Undefined variable: adapter [APP'Controller'UsersController.php, line 177]指向案例 6

谁能建议发生了什么。我无法调试这个。

附言这只发生在谷歌登录

问候枪