Google#u客户端收据验证：Class'；GuzzleHttp\Psr7\UriResolver'；在\vendor\guzzlehttp\guzzle\src\Client.php第147行中找不到

我使用的是Lumen版本Laravel框架版本Lumen（5.3.3）（Laravel组件5.3.*）。下面是我的代码。但是抛出异常：

在\vendor\GuzzleHttp\guzzle\src\Client.php第147行中找不到类“GuzzleHttp\Psr7\UriResolver”

代码：

问题解决：）我所做的是降低了适用于Lumen 5.33的api客户端的级别。这是版本“google/apiclient”：“1.1.8”，“laravel/lumen framework”：“5.3.*”，问题解决：）我所做的是降低了适用于lumen 5.33的api客户端的级别。这是版本“google/apiclient”：“1.1.8”，“laravel/lumen框架”：“5.3.*”，

$applicationName = 'xxx';
$configLocation = storage_path() . '/receiptValidation/GooglePlayAndroidDeveloper-7cb840b98626.json';
$scope = ['https://www.googleapis.com/auth/androidpublisher'];
$packageName = 'xxxxx';
$productId = 'xxxxx';
$purchaseToken = 'xxxxx';

$client = new \Google_Client();
$client->setApplicationName($applicationName);
$client->setAuthConfig($configLocation);
$client->setScopes($scope);

$validator = new PlayValidator(new \Google_Service_AndroidPublisher($client));

try {
$response = $validator->setPackageName($packageName)
    ->setProductId($productId)
    ->setPurchaseToken($purchaseToken)
    ->validatePurchase();
} catch (Exception $e) {
    var_dump($e->getMessage());
    // example message: Error calling GET ....: (404) Product not found for this application.
}