获取OAuth2访问令牌时出错，消息：'invalid_client'

Question

I have :

$client = new \Google_Client();
        $client->setApplicationName("Name");
        $client->setDeveloperKey("key");
        $client->setClientId("id");
        $client->setClientSecret("codesecret");
        $client->setScopes(array("https://www.googleapis.com/auth/calendar"));
        $client->setRedirectUri("https://www.example.com/oauth2callback");

And I have this error "Error fetching OAuth2 access token, message: 'invalid_client'", how can I fix this? And I don't know how to get the token.