11.2 packages preinstall needs change

Hi, I was trying to install a package in a 11.2 instance and I got this error:
PHP Fatal error: require_once(): Failed opening required 'vendor/symfony/filesystem/Filesystem.php' (include_path='/Applications/MAMP/htdocs/WORK/GIT/gitq190308-aelca-implantacion/sugarcrm:/Applications/MAMP/htdocs/WORK/GIT/gitq190308-aelca-implantacion/sugarcrm/vendor:.:/Applications/MAMP/bin/php/php7.3.9/lib/php') in /Applications/MAMP/htdocs/WORK/GIT/gitq190308-aelca-implantacion/sugarcrm/cache/mlp_temp/WQFguT/scripts/pre_install.php on line 6
I have found out that, yes, vendor/symfony/filesystem folder is not there anymore, so pre_install.php should be changed.
Does anybody knows what changes have to be made to preinstall, or have a working version of pre_install.php for 11.2?
Thanks