The conflict issue occurred during the installation of one of the SilverStripe modules (silverstripe/versioned-snapshot-admin) where one of its dependencies requires symfony/event-dispatcher v5 which conflicts with symfony/console[v4.4.7].
For reference, sensiolabs/security-checker v5.0.3 requires symfony/console (~2.7|~3.0|~4.0).
The conflict issue occurred during the installation of one of the SilverStripe modules (silverstripe/versioned-snapshot-admin) where one of its dependencies requires symfony/event-dispatcher v5 which conflicts with symfony/console[v4.4.7].
For reference, sensiolabs/security-checker v5.0.3 requires symfony/console (~2.7|~3.0|~4.0).