[Routing] Route::$env not initialized PHP 8

[ricohumme]

Symfony version(s) affected

6.0.5

Description

When using this branch I can see that some variables are not initialized when the cache is cleared.
I did however see that these class variables are present (but not all initialized) in the 5.4 branch.
In the 6.0 and 6.1 branch, the class variables are no longer present.

The specific error I got

In Route.php line 196:
                                                                                                              
  Typed property Symfony\Component\Routing\Annotation\Route::$env must not be accessed before initialization  
                                                                                                              

How to reproduce

Checkout latest version of symfony/routing and run this with PHP 8 with strict variables.

Possible Solution

Add the class variables and initialize these

Additional Context

No response

[xabbuh]

What does „run this“ mean? Can you please create a small application that allows to reproduce your issue?

[jukuan]

I have same issue on php8.1.3 for symfony/routing v.6.0.5.
The private ?string $env property is Uninitialized for some reasons.
But when manually copy-pasted files from v.6.0 to the vendor/symfony/routing directory, then everything works fine again.
So, it's hard to say what's wrong here. Probably it is because of reflection?

├ Error: Typed property Symfony\Component\Routing\Annotation\Route::$schemes must not be accessed before initialization
   │
   ╵ vendor/symfony/routing/Annotation/Route.php:160
   ╵ vendor/symfony/routing/Loader/AnnotationClassLoader.php:170
   ╵ vendor/symfony/routing/Loader/AnnotationClassLoader.php:130
   ╵ vendor/symfony/routing/Loader/AnnotationDirectoryLoader.php:60
   ╵ vendor/symfony/config/Loader/FileLoader.php:157
   ╵ vendor/symfony/config/Loader/FileLoader.php:96
   ╵ vendor/symfony/routing/Loader/YamlFileLoader.php:211
   ╵ vendor/symfony/routing/Loader/YamlFileLoader.php:99
   ╵ vendor/symfony/config/Loader/FileLoader.php:157
   ╵ vendor/symfony/config/Loader/FileLoader.php:85
   ╵ vendor/symfony/routing/Loader/Configurator/RoutingConfigurator.php:45
   ╵ src/Kernel.php:52
 

UPD:
Updating the version php helped me. I upgraded it to the php8.1.4 (from 8.1.3). And it works fine.
It's really strange, because as I can see the symfony/routing package has differences only in syntax, especially in that file: vendor/symfony/routing/Annotation/Route.php.

[jukuan]

@ricohumme what version of php do you have?
and check please if you have some polyfills installed (i.e. symfony/polyfill-php72) and try to remove them.

[ricohumme]

Hi, I have 8.1.3 as well. Installed polyfill's on this project are for 7.3, 8.0 and 8.1

[nicolas-grekas]

If you are experiencing the issue, no need to say so, this report is already saying there is an issue to understand.

Please provide a reproducer instead as we won't be able to fix anything without reproducing first.

[ricohumme]

Oke I narrowed this down to a cache issue when upgrading from symfony/routing 5.4.3 to 6.0.5.
Right after you run composer update the cache gets cleared and that's when the error hits.
When performing another cache:clear the issue is no longer present.

Can anyone confirm this?
I don't feel like an example project is justified in this case as this only happens (to me at least) when updating to a new major version.

[fabpot]

Just had the same issue while upgrading, clearing the cache was enough to get rid of it. So, not sure we need to do anything here.

[ricohumme]

I think just the fact that it has been noticed and it "auto-resolves" should be enough :)

[v-radev]

Cache clear was throwing this error for me so I did rm -rf var/cache/dev/ and it was fixed. Happened while updating from 5 to 6.