Symptoms
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When accessing Plesk > Domains > example.com > PHP Composer page, the following error message is displayed:
Could not update the integration plugin
Changed current directory to /var/www/vhosts/example.com/.composer
[InvalidArgumentException]
Package plesk/composer-command-info at version ~1.0.2 has a PHP requirement incompatible with your PHP version, PHP extensions and Composer version -
PHP Composer extension of version 1.1.0 or later is installed on the server. It can be checked in Extensions > My Extensions > PHP Composer.
Cause
The older version of Composer is used by default despite Composer was updated to v2.0:
# composer --version
Composer version 2.0-dev
Resolution
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Go to Extenions > My Extensions > Panel.ini Editor > Open.
Note: If Panel.ini Editor extension is not installed, install it from the Extensions menu in Plesk.
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Switch to the Editor tab.
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Specify the Composer and plugin versions by adding the lines below at the end of the file as below:
[ext-composer]
commandInfoPluginVersion = "~1.1.0"
composerVersion = '2'
Solution via CLI
1. Connect to a Plesk server via SSH.
2. Сheck panel.ini file availability:
# ls -l /usr/local/psa/admin/conf/panel.ini
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If the file
/usr/local/psa/admin/conf/panel.inidoes not exist or is empty, create it by copying the sample configuration file/usr/local/psa/admin/conf/panel.ini:# cp /usr/local/psa/admin/conf/panel.ini.sample /usr/local/psa/admin/conf/panel.ini
3. Open /usr/local/psa/admin/conf/panel.ini file via any text editor, for example, vi text editor:
# vi /usr/local/psa/admin/conf/panel.ini
3. Specify the required composer and plugin versions by adding lines below to the end of the file:
[ext-composer]
commandInfoPluginVersion = "~1.1.0"
composerVersion = '2'
4. Save the changes and close the file.
with