Be part of JetBrains PHPverse 2026 on June 9 – a free online event bringing PHP devs worldwide together.
I have a Laravel 9 project with Php 8.1, It works on my dev server. But , after cloning the project to prod, I run "composer install" and get these errors
PHP Deprecated: Return type of Symfony\Component\Console\Helper\HelperSet::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in phar:///usr/local/bin/composer/vendor/symfony/console/Helper/HelperSet.php on line 112
...
I don't understand and should appreciate any help.
Thanks in advance.
Check php version, check dependencies, etc
Also do searches, I found this: https://github.com/symfony/symfony/issues/42199
There are more search results.
Just suggestions.
Edit:
Also here is a previous post:
https://laracasts.com/discuss/channels/laravel/deprecated-and-deprecation-notice-with-laravel-9x
Thank @jlrdw for your reply.
Php version, just a minor difference.
Had a look to the link your shared but did not find a solution right now ... to be continued ...
Please or to participate in this conversation.