Knowledge Base

Unable to update PHP dependencies via PHP Composer in Plesk: Support for composer 1 is deprecated

Unable to update PHP dependencies via PHP Composer in Plesk:

Support for composer 1 is deprecated

Currently, Plesk is using Composer 1 by default. This behavior is planned to be changed in future extension updates in scope of EXTPHPCOMP-188.

As a workaround, update Composer to version 2:

Click on a section to expand

Log in to Plesk
Go to Extensions > search panel.ini editor > click Get it free
Go to Extensions > My Extensions > Panel.ini editor > Edit and add the following strings to the end of the file:

[ext-composer]
commandInfoPluginVersion = "~1.1.0"
ComposerVersion = '2'
Go to Tools & Settings > Scheduled tasks (Cronjobs) and click Add task. Paste the following command and click Run now:

Ubuntu/Debian:

/opt/plesk/php/7.4/bin/php /opt/psa/var/modules/composer/composer.phar self-update --2

CentOS/RHEL:

/opt/plesk/php/7.4/bin/php /usr/local/psa/var/modules/composer/composer.phar self-update --2

Note: Use actual PHP version in the command above to update PHP composer

Log in to Plesk
Install Panel.ini Editor extension
Go to Extensions > My Extensions > Panel.ini editor > Editor and add the following strings to the end of the file to keep version 2:
[ext-composer]
commandInfoPluginVersion = "~1.1.0"
ComposerVersion = '2'
Run below command in CMD to perform an update:
C:> "%plesk_dir%AdditionalPleskPHP74php.exe" "%plesk_dir%varmodulescomposercomposer.phar" self-update --2
To verify that version is correct execute the following command:
C:> "%plesk_dir%AdditionalPleskPHP74php.exe" "%plesk_dir%varmodulescomposercomposer.phar" --version

Note: Use actual PHP version in the command above to update PHP composer