Magento 2 : crontab is not working

Question

I am trying to implementing cron job for my module but getting error in CLI.

I am using windows operating system.

here is crontab.xml

<?xml version="1.0" encoding="UTF-8"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Cron:etc/crontab.xsd">
<group id="customdesignsubcategories_cron">
    <job name="uploadFile_deletion" instance="vender\module\Cron\UploadFileDeletion" method="execute">
        <schedule>1/2 * * * *</schedule>
    </job>
</group>

here is UploadFileDeletion.php

<?php
namespace vender\module\Cron

class UploadFileDeletion
{
protected $_logger;
public function __construct(\Psr\Log\LoggerInterface $logger) 
{
    $this->_logger = $logger;
}
public function execute()
{
    $this->_logger->debug('Cron run successfully');
    return $this;
}
}

following commands i fire in CLI

php bin/magento cron:run --group="customdesignsubcategories_cron"

Error =>

[Magento\Framework\Exception\LocalizedException] Invalid Document
Element 'job': The attribute 'instance' is required but missing.
Line: 4

Element 'job': The attribute 'method' is required but missing.
Line: 4

Element 'schedule': Element content is not allowed, because the type definition is simple. Line: 5

Element 'schedule': [facet 'minLength'] The value has a length of '0'; this underruns the allowed minimum length of '5'. Line: 5

Element 'schedule': '' is not a valid value of the list type 'scheduleDeclaration'. Line: 5

Element 'run': This element is not expected. Expected is ( config_path ). Line: 8

cron:run [--group GROUP] [--bootstrap BOOTSTRAP]

Answer 1

try changing your crontab.xml to this:

<?xml version="1.0" encoding="UTF-8"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Cron:etc/crontab.xsd">
<group id="customdesignsubcategories_cron">
    <job name="uploadFile_deletion" instance="vender\module\Cron\UploadFileDeletion" method="execute">
        <schedule>*/2 * * * *</schedule>
    </job>
</group>

Also, ensure your file is indented with spaces instead of tabs (if not done already)