Fatal error with latest dev release

trying to rebuild cache give me this

Warning: Undefined array key "config_overrides" in /Users/.../web/modules/contrib/symfony_mailer/src/Processor/EmailBuilderManager.php on line 222

Please review.

I think it might have been fixed by https://www.drupal.org/project/symfony_mailer/issues/3315358#comment-150... ✨ Allow full management of override plugins Fixed - please can you test again?

Thanks for MR but I don't think that's the problem.

See #9 hopefully already fixed, please re-open if not

I'm using 1.3.0-rc2 (which seems to be having the latest patch from #3315358) and I still have the same error. Happens on "drush status".

# composer exec -- drush -r web status
 [warning] Undefined array key "config_overrides" MailerConfigOverride.php:93
 [error]  TypeError: array_merge(): Argument #2 must be of type array, null given in array_merge() (line 93 of /var/www/html/drupal/web/modules/contrib/symfony_mailer/src/Processor/MailerConfigOverride.php) #0 /var/www/html/drupal/web/modules/contrib/symfony_mailer/src/Processor/MailerConfigOverride.php(93): array_merge()
#1 /var/www/html/drupal/web/modules/contrib/symfony_mailer/src/Processor/MailerConfigOverride.php(52): Drupal\symfony_mailer\Processor\MailerConfigOverride->buildCache()
#2 /var/www/html/drupal/web/core/lib/Drupal/Core/Config/ConfigFactory.php(209): Drupal\symfony_mailer\Processor\MailerConfigOverride->loadOverrides()
#3 /var/www/html/drupal/web/core/lib/Drupal/Core/Config/ConfigFactory.php(169): Drupal\Core\Config\ConfigFactory->loadOverrides()
#4 /var/www/html/drupal/web/core/lib/Drupal/Core/Config/ConfigFactory.php(104): Drupal\Core\Config\ConfigFactory->doLoadMultiple()
#5 /var/www/html/drupal/web/core/lib/Drupal/Core/Config/ConfigFactory.php(89): Drupal\Core\Config\ConfigFactory->doGet()
#6 /var/www/html/drupal/web/core/lib/Drupal/Core/Extension/ThemeHandler.php(70): Drupal\Core\Config\ConfigFactory->get()
#7 /var/www/html/drupal/web/core/lib/Drupal/Core/Template/Loader/FilesystemLoader.php(46): Drupal\Core\Extension\ThemeHandler->listInfo()
...

Actually I've run "drush cr" and the error was gone. So it's probably fixed in #3315358 as mentioned.

Automatically closed - issue fixed for 2 weeks with no activity.

I still have this error.

Was using latest stable release, was creating a new policy but could not add a body field because of Ajax error.
Found via issue queue that this should be fixed in latest Dev version, so then I used the dev version (installed via composer of course and ran drush updb and drush cr).

Since then I have this problem. I also tried using 1.3.0-rc3 but that gives the same problem.

Since then, I cannot even access admin/config/system/mailer anymore:

The website encountered an unexpected error. Please try again later.
TypeError: array_merge(): Argument #2 must be of type array, null given in array_merge() (line 93 of modules/contrib/symfony_mailer/src/Processor/MailerConfigOverride.php).
array_merge(Array, NULL) (Line: 93)
Drupal\symfony_mailer\Processor\MailerConfigOverride->buildCache() (Line: 52)
Drupal\symfony_mailer\Processor\MailerConfigOverride->loadOverrides(Array) (Line: 209)
Drupal\Core\Config\ConfigFactory->loadOverrides(Array) (Line: 169)
Drupal\Core\Config\ConfigFactory->doLoadMultiple(Array, 1) (Line: 104)
Drupal\Core\Config\ConfigFactory->doGet('system.date') (Line: 89)
Drupal\Core\Config\ConfigFactory->get('system.date') (Line: 90)
Drupal\system\TimeZoneResolver->getTimeZone() (Line: 53)
Drupal\system\TimeZoneResolver->setDefaultTimeZone(Object, 'account.set', Object)
call_user_func(Array, Object, 'account.set', Object) (Line: 142)
Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch(Object, 'account.set') (Line: 65)
Drupal\Core\Session\AccountProxy->setAccount(Object) (Line: 79)
Drupal\Core\EventSubscriber\AuthenticationSubscriber->onKernelRequestAuthenticate(Object, 'kernel.request', Object)
call_user_func(Array, Object, 'kernel.request', Object) (Line: 142)
Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch(Object, 'kernel.request') (Line: 145)
Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 81)
Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 58)
Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 106)
Drupal\page_cache\StackMiddleware\PageCache->pass(Object, 1, 1) (Line: 85)
Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 23)
Stack\StackedHttpKernel->handle(Object, 1, 1) (Line: 718)
Drupal\Core\DrupalKernel->handle(Object) (Line: 19)

And that showed me that the custom EmailBuilder I'm trying to create is indeed missing a 'config_overrides' key:

config_overrides is set to [] in the EmailBuilder annotation, so you don't need to change your code.

There seems to be something strange going on during the upgrade - maybe it hits the bug before it has read the new annotation class?

There's now an issue for #15: 🐛 Upgrade leads to array_merge(): Argument #2 must be of type array, null given Fixed

AdamPS → closed merge request !47