GuzzleHttp在Laravel上突然给我一个错误

我的项目突然出现这个错误：

Argument 1 passed to VonageClient::setHttpClient() must be an instance of PsrHttpClientClientInterface, instance of GuzzleHttpClient given, called in /home/vagrant/Code/xxx/vendor/nexmo/client-core/src/Client.php

这是包中的一小部分代码：

        if (is_null($client)) {
        // Since the user did not pass a client, try and make a client
        // using the Guzzle 6 adapter or Guzzle 7 (depending on availability)
        /** @noinspection ClassConstantCanBeUsedInspection */
        if (class_exists('GuzzleHttpClient')) {
            $client = new GuzzleHttpClient();
        } elseif (class_exists('HttpAdapterGuzzle6Client')) {
            /** @noinspection CallableParameterUseCaseInTypeContextInspection */
            /** @noinspection PhpUndefinedNamespaceInspection */
            /** @noinspection PhpUndefinedClassInspection */
            $client = new HttpAdapterGuzzle6Client();
        }
    }

    $this->setHttpClient($client);

我尝试使用以下命令更新 guzzlehttp：
composer require guzzlehttp/guzzle

我有这个错误：

  Problem 1
    - webup/laravel-sendinblue v2.0.3 requires guzzlehttp/guzzle ^6.3 -> satisfiable by guzzlehttp/guzzle[6.5.x-dev].
    - webup/laravel-sendinblue v2.0.3 requires guzzlehttp/guzzle ^6.3 -> satisfiable by guzzlehttp/guzzle[6.5.x-dev].
    - webup/laravel-sendinblue v2.0.3 requires guzzlehttp/guzzle ^6.3 -> satisfiable by guzzlehttp/guzzle[6.5.x-dev].
    - Can only install one of: guzzlehttp/guzzle[7.2.0, 6.5.x-dev].
    - Installation request for guzzlehttp/guzzle ^7.2 -> satisfiable by guzzlehttp/guzzle[7.2.0].
    - Installation request for webup/laravel-sendinblue (locked at v2.0.3, required as 2.*) -> satisfiable by webup/laravel-sendinblue[v2.0.3].

我不知道我能做什么:(

请帮我解决这个问题，谢谢！

回答

NEXMO_HTTP_CLIENT="HttpAdapterGuzzle6Client"