Magento2 composer update get stuck and not proceeding further

Question

I am upgrading Magento version from 2.1.9 to latest i.e. (2.3.3).

Steps I followed are:

1. composer require magento/product-enterprise-edition 2.3.3 --no-update
2. composer require --dev allure-framework/allure-phpunit:~1.2.0 friendsofphp/php-cs-fixer:~2.14.0 lusitanian/oauth:~0.8.10 magento/magento-coding-standard:~3.0.0 magento/magento2-functional-testing-framework:2.4.5 pdepend/pdepend:2.5.2 phpmd/phpmd:@stable phpunit/phpunit:~6.5.0 sebastian/phpcpd:~3.0.0 squizlabs/php_codesniffer:~3.4.0 --sort-packages --no-update

3.composer remove --dev sjparkinson/static-review fabpot/php-cs-fixer --no-update

4.composer remove magento/module-bundle-sample-data magento/module-theme-sample-data magento/module-widget-sample-data magento/module-sales-sample-data magento/module-wishlist-sample-data magento/module-catalog-sample-data magento/module-tax-sample-data magento/module-sales-rule-sample-data magento/module-customer-sample-data magento/module-cms-sample-data magento/module-downloadable-sample-data magento/module-review-sample-data magento/module-catalog-rule-sample-data magento/module-msrp-sample-data magento/module-gift-card-sample-data magento/module-product-links-sample-data magento/module-configurable-sample-data magento/module-grouped-product-sample-data magento/module-customer-balance-sample-data magento/module-gift-registry-sample-data magento/module-target-rule-sample-data magento/module-multiple-wishlist-sample-data magento/sample-data-media magento/module-offline-shipping-sample-data magento/module-swatches-sample-data --no-update

5.composer update

The issue I am facing is that I am unable to receive any output of composer update command.

Checked log as well and found nothing.

I am unable to proceed further after this:

Loading composer repositories with package information

Updating dependencies (including require-dev)

Any idea why is it so ?

Answer 1

I managed to resolve my issue by following below mentioned steps:

1. Check the version of PHP is compatible and also you have all needed extensions installed. (I installed a default Magento to check)

2. Take the default composer.json of the version you want to install and compare. I took the one of default Magento (2.3.3) composer and after compare with the current Magento (2.1.9) removed the unused package one by one and Identified that which one is creating issue for me.

Hope it may help anyone.

Answer 2

In case someone else gets stuck, you can simply run php -m to check whether you have all the PHP extensions Magento requires installed. If you determine you have all requirements met, it may likely be a memory issue. Check your php.ini file and increase the memory_limit to something like memory_limit: 2G. You can learn more about the recommendations from the official documentation.