4.4.10 → 5.0.1 fails because Symfony Path is not fount in ParameterLoader.php

My error when Upgrade:

`composer update
Do not run Composer as root/super user! See How do I install untrusted packages safely? Is it safe to run Composer as superuser or root? - Composer for details
Continue as root/super user [yes]? y
Loading composer repositories with package information
Updating dependencies
Your requirements could not be resolved to an installable set of packages.

Problem 1
- Root composer.json requires mautic/core-lib 4.3.1 → satisfiable by mautic/core-lib[4.3.1].
- mautic/core-lib 4.3.1 requires lightsaml/sp-bundle ~1.2.1 → satisfiable by lightsaml/sp-bundle[1.2.1] from composer repo (https://repo.packagist.org) but lightsaml/sp-bundle[dev-master, dev-symfony5] from vcs repo (git GitHub - mautic/SpBundle: SAML2 SP Symfony Bundle based on LightSAML) has higher repository priority. The packages from the higher priority repository do not match your constraint and are therefore not installable. That repository is canonical so the lower priority repo’s packages are not installable. See Repository priorities - Composer for details and assistance.
Problem 2
- mautic/core-lib 4.3.1 requires lightsaml/sp-bundle ~1.2.1 → satisfiable by lightsaml/sp-bundle[1.2.1] from composer repo (https://repo.packagist.org) but lightsaml/sp-bundle[dev-master, dev-symfony5] from vcs repo (git GitHub - mautic/SpBundle: SAML2 SP Symfony Bundle based on LightSAML) has higher repository priority. The packages from the higher priority repository do not match your constraint and are therefore not installable. That repository is canonical so the lower priority repo’s packages are not installable. See Repository priorities - Composer for details and assistance.
- mautic/theme-trulypersonal 4.3.1 requires mautic/core-lib ^4.0 → satisfiable by mautic/core-lib[4.3.1].
- Root composer.json requires mautic/theme-trulypersonal 4.3.1 → satisfiable by mautic/theme-trulypersonal[4.3.1].

Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.`