我可以使用谷歌客户端来收到电子邮件，如下所示：
$this->client->setClientId('...');
$this->client->setClientSecret('...');
$this->client->setRedirectUri('...');
$this->client->setScopes('email');
$this->client->addScope('https://www.googleapis.com/auth/plus.login');
$this->client->setDeveloperKey('...');
$this->client->setAccessType = 'offline';
... 公共函数getEmail（） { $这 - ＆GT; setToken（$ _ SESSION [ 'ACCESS_TOKEN']）; $这 - ＆GT;客户机＆GT; verifyIdToken（）; $ payload = $ this-＆gt; client-＆gt; verifyIdToken（） - ＆gt; getAttributes（）['payload'] ['email']; echo $ payload;
... 这与电子邮件相呼应。好。
现在我想使用Google_Service_Plus'people-＆gt; get'，如下所示：
$this->setToken($_SESSION['access_token']);
$this->client->verifyIdToken();
$googlePlus = new Google_Service_Plus($this->client);
$userProfile = $googlePlus->people->get('me');
但$ userProfile会返回此错误：
Fatal error: Uncaught exception 'Google_Service_Exception' with message 'Error calling GET https://www.googleapis.com/plus/v1/people/me?key=AIzaSyDvOsKSpSKmzVYV6m4tqZ5zHs8GIMdUv9s: (403) Access Not Configured. The API is not enabled for your project, or there is a per-IP or per-Referer restriction configured on your API key and the request does not match these restrictions. Please use the Google Developers Console to update your configuration.' in C:\xampp\htdocs\phpacademy\googleauth\vendor\google\src\Google\Http\REST.php on line 111
我错过了什么？