Why does an error occur when installing symfony?

Question

symfony

composer create-project symfony/website-skeleton testpr

Executing script cache:clear [KO]
 [KO]
Script cache:clear returned with error code 1
!!
!!  In ArrayNode.php line 311:
!!
!!    Unrecognized option "validator" under "framework"
!!
!!
!!
Script @auto-scripts was called via post-install-cmd

Answer 1

Corrected: https://github.com/symfony/recipes/pull/445
As for symfony/flext - they often break something there lately, so it's better to look at their repositories first: https://github.com/ symfony/recipes and https://github.com/symfony/flex, especially if "everything worked before"