Choose the preferred option to install M2E Pro extension.
You may consider other ways for installation
Update the composer.json file in your Magento project
composer require m2epro/magento2-extension
Enable the extension and clear static view files
bin/magento module:enable Ess_M2ePro --clear-static-content
Register the extension and recompile your Magento project and deploy static content
php bin/magento setup:upgrade
php bin/magento setup:di:compile
php bin/magento setup:static-content:deploy
Clean the cache
bin/magento cache:clean
Next, update the composer.json file in your Magento project
composer require m2e/ebay-amazon-magento2
and enter your Magento authentication keys
Enable the extension, clear static view files
bin/magento module:enable Ess_M2ePro --clear-static-content
and register the extension
bin/magento setup:upgrade
Recompile your Magento project
bin/magento setup:di:compile
bin/magento setup:static-content:deploy
Clean the cache
bin/magento cache:clean