How to solve Magento 2 with composer 2 version error when sample data install

Question

My application running AWS Bitnami platform. I am trying to upload sample data using composer after commands show warning message below

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Do you want to store credentials for repo.magento.com in /bitnami/magento/var/composer_home/auth.json ? [Yn] y Warning from https://repo.packagist.org: You are using an outdated version of Composer. Composer 2 is now available and you should upgrade. See https://getcomposer.org/2 ./composer.json has been updated Loading composer repositories with package information Warning from https://repo.packagist.org: You are using an outdated version of Composer. Composer 2 is now available and you should upgrade. See https://getcomposer.org/2 Updating dependencies (including require-dev)

Installation failed, reverting ./composer.json to its original content.

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Show above error.How can I solve this problem? What is the best solution for this warning? Can I Composer with continue version 1 or Upgrade with Version 2? Thanks for advance for your reply

Answer 1

I am not sure which m2 version are you using, but the magento tech stack documentation state that m2.4.2 is compatible with composer 1.x & 2.x, however, m2.4.1 is compatible with only composer 1.x. So upgrading composer while using 2.4.1 is a big no-no.

Even if you get this warning, this is unlikely that it's the reason why the installation failed.

Try adding the sample data by running the following commands:

bin/magento sampledata:deploy

bin/magento setup:upgrade

(Source https://devdocs.magento.com/guides/v2.4/install-gde/install/sample-data-after-composer.html)

Good luck!