I am trying to install an extension on Magento 2.2.4 but I am getting the following error. I have alredy set the crontab as well.
What can be the issue here ?
You can manually add extension using below way,
Just go to Magento root with app/code
Now Extract your module under code folder and run below command to install your extension,
php magento setup:upgrade php magento setup:static-content:deploy -f php magento cache:flush