wechatpay-apiv3微信支付SDK工厂化实例失败

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wechatpay-apiv3微信支付SDK工厂化实例失败wechatpay-apiv3 WeChat payment SDK factory instance failed

When executing the following statement, it returns []. How can I solve it?? PHP7. 1.33 Guzzle 6.5 $instance = Builder::factory([ 'mchid' => $merchantId, 'serial' => $merchantCertificateSerial, 'privateKey' => $merchantPrivateKeyInstance, 'certs' => [ $platformCertificateSerial => $platformPublicKeyInstance, ], ]);

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