是用其他命令如下也是报上面得错误 运行环境php7.3.33 +apache 集成环境工具mamp pro6.8 ：

php vendor/bin/CertificateDownloader.php -k ${apiV3key} -m ${mchId} -f ${mchPrivateKeyFilePath} -s ${mchSerialNo} -o ${outputFilePath}

composer exec CertificateDownloader.php -k ${apiV3key} -m ${mchId} -f ${mchPrivateKeyFilePath} -s ${mchSerialNo} -o ${outputFilePath}