Pre-requirement for troubleshooting
PHP extension errorcheck “composer” on your system first open command prompt and type “composer”,
PHP Extension error installing During Magento 2If you seen “composer is not recognized as an internal or External command” so you need install getComposer.exe
ORif you see screen like “you are running with xdebug enabled this has a major impact on runtime performance.”
Error 1 : PHP Settings Check
zend_extension = “D:/wamp/bin/php/php5.5.12/zend_ext/php_xdebug-2.2.5-5.5-vc11.dll”Step-2:and comment(;) this
;zend_extension = “D:/wamp/bin/php/php5.5.12/zend_ext/php_xdebug-2.2.5-5.5-vc11.dll”Step-3: Restart wampserver and check again.
Error 2 : PHP Extension intl