- Plesk 12.5 for Linux
Unable to install Softaculous extension:
Error: Failed to install the extension: Executing /usr/local/psa/tmp/module8JzWud/plib/scripts/pre-install.php failed: POSIX extension is not loaded in PHP. Please enable it to continue installation
php-process package that is required for Softaculous is not installed on a server.
Install the required package:
# yum install php-process
Verify it is loaded:
# php -m | grep -i posix