PHP Composer extension is not accessible in Plesk

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Let’s take a look at how our Support Team help a customer deal with this Plesk error.

How resolve PHP Composer extension is not accessible in Plesk?

Usually, 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
 
Issue occurs if the older version of Composer is used by default despite Composer was updated to v2.0:
 
composer --version
Composer version 2.0-dev
 
Today, let us see the steps followed by our Support Techs to resolve it:
 
1. Firstly, log into Plesk.
 
2. Then, 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.
 
3. Then, switch to the Editor tab.
 
4. Finally, 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.Firstly, connect to a Plesk server via SSH.
 2.Then, check panel.ini file availability:
 
ls -l /usr/local/psa/admin/conf/panel.ini
 
If the file 
/usr/local/psa/admin/conf/panel.ini
 does 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
 
4.Next, 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'
 
5.Finally, save the changes and close the file.
 
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Conclusion
 
Today, we saw steps followed by our Support Engineers to resolve PHP Composer extension is not accessible in Plesk
 
 
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