magento2 Each method must have a doc block. See

执行如下命令出现如下报错 , 十有八九是因为接口没有写注释说明, magento2接口必须写注释

php bin/magento setup:upgrade

Each method must have a doc block. See Maijindou\Shipment\Api\ShipmentRepositoryInterface::getLogisticsInfo()