GuzzleHTTP Critical Error when trying to list plugins

I’m running the following command:
WP_CLI_PHP_ARGS=’-d include_path=vendor/google/appengine-php-sdk’ vendor/bin/wp –path=my-wordpress-project plugin list

And I’m getting the following error:

PHP Fatal error:  Uncaught Error: Call to undefined method GuzzleHttp\Utils::chooseHandler() in $PROJECT_DIR/vendor/guzzlehttp/guzzle/src/functions.php:61
Stack trace:
#0 $PROJECT_DIR/my-wordpress-project/wp-content/plugins/gcs/vendor/guzzlehttp/guzzle/src/HandlerStack.php(42): GuzzleHttp\choose_handler()
#1 $PROJECT_DIR/my-wordpress-project/wp-content/plugins/gcs/vendor/guzzlehttp/guzzle/src/Client.php(65): GuzzleHttp\HandlerStack::create()
#2 $PROJECT_DIR/my-wordpress-project/wp-content/plugins/gcs/vendor/google/auth/src/HttpHandler/HttpHandlerFactory.php(33): GuzzleHttp\Client->__construct()
#3 $PROJECT_DIR/my-wordpress-project/wp-content/plugins/gcs/gcs.php(124): Google\Auth\HttpHandler\HttpHandlerFactory::build()
#4 $PROJECT_DIR/my-wordpress-project/wp-content/plugins/gcs/gcs.php(42): Google\Cloud\Storage\WordPress\get_google_storage_client()
#5 $PROJECT_DIR/my-wordpress-project/wp-settings.php(391): include_once('/home/yar/yaraj...')
#6 /home/yar/yaraj in $PROJECT_DIR/vendor/guzzlehttp/guzzle/src/functions.php on line 61
Fatal error: Uncaught Error: Call to undefined method GuzzleHttp\Utils::chooseHandler() in $PROJECT_DIR/vendor/guzzlehttp/guzzle/src/functions.php:61
Stack trace:
#0 $PROJECT_DIR/my-wordpress-project/wp-content/plugins/gcs/vendor/guzzlehttp/guzzle/src/HandlerStack.php(42): GuzzleHttp\choose_handler()
#1 $PROJECT_DIR/my-wordpress-project/wp-content/plugins/gcs/vendor/guzzlehttp/guzzle/src/Client.php(65): GuzzleHttp\HandlerStack::create()
#2 $PROJECT_DIR/my-wordpress-project/wp-content/plugins/gcs/vendor/google/auth/src/HttpHandler/HttpHandlerFactory.php(33): GuzzleHttp\Client->__construct()
#3 $PROJECT_DIR/my-wordpress-project/wp-content/plugins/gcs/gcs.php(124): Google\Auth\HttpHandler\HttpHandlerFactory::build()
#4 $PROJECT_DIR/my-wordpress-project/wp-content/plugins/gcs/gcs.php(42): Google\Cloud\Storage\WordPress\get_google_storage_client()
#5 $PROJECT_DIR/my-wordpress-project/wp-settings.php(391): include_once('/home/yar/yaraj...')
#6 /home/yar/yaraj in $PROJECT_DIR/vendor/guzzlehttp/guzzle/src/functions.php on line 61
Error: There has been a critical error on this website.Learn more about troubleshooting WordPress. There has been a critical error on this website.

Here is my composer.json:

{
    "require": {
        "google/cloud-tools": "^0.12.0",
        "wp-cli/wp-cli-bundle": "^2.5"
    },
    "require-dev": {
        "google/appengine-php-sdk": "^1.9"
    }
}

Please let me know if it will help for me to provide any other info/details to identify the problem.

Thank you in advance!