I got this warning :

Warning: Unsupported declare 'strict_types' in /home/SITE_NAME/public_html/vendor/magento/inventory-composer-installer/src/Plugin.php on line 6

And this error :

Parse error: syntax error, unexpected ':', expecting ';' or '{' in /home/SITE_NAME/public_html/vendor/magento/inventory-composer-installer/src/Plugin.php on line 55

Every time that I run a composer commande line like :

composer -V

I have : CentOS Linux release 7.5.1804 (Core); PHP 7.2 (via cPanel) ; Latest magento 2.3.0 CE

Someone can help?

  • Post this in answer, so that it will helpful for others – Shoaib Munir Feb 14 at 4:16

Problem resolved, the problem was in PHP version! HTTP requests use PHP7.2 but Commande line use the default PHP and it was PHP5.6!

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