"syntax error, unexpected token "<<"" in symfony/config/blob/7.3/Builder/ConfigBuilderGenerator.php

[floriankraemer]

Symfony version(s) affected

7.3

Description

I just tried to update and got this:

Executing script cache:clear [KO]
 [KO]
Script cache:clear returned with error code 255
!!  ParseError {#421
!!    #message: "syntax error, unexpected token "<<""
!!    #code: 0
!!    #file: "./vendor/symfony/config/Builder/ConfigBuilderGenerator.php"
!!    #line: 288
!!    trace: {
!!      ./vendor/symfony/config/Builder/ConfigBuilderGenerator.php:288 { …}
!!      Symfony\Component\ErrorHandler\DebugClassLoader->loadClass() {}
!!      ./vendor/symfony/http-kernel/Kernel.php:721 { …}
!!      ./vendor/symfony/http-kernel/Kernel.php:611 { …}
!!      ./vendor/symfony/http-kernel/Kernel.php:498 { …}
!!      ./vendor/symfony/http-kernel/Kernel.php:744 { …}
!!      ./vendor/symfony/http-kernel/Kernel.php:120 { …}
!!      ./vendor/symfony/framework-bundle/Console/Application.php:195 { …}
!!      ./vendor/symfony/framework-bundle/Console/Application.php:69 { …}
!!      ./vendor/symfony/console/Application.php:192 { …}
!!      ./vendor/symfony/runtime/Runner/Symfony/ConsoleApplicationRunner.php:49 { …}
!!      ./vendor/autoload_runtime.php:29 { …}
!!      ./bin/console:15 {
!!        › 
!!        › require_once dirname(__DIR__).'/vendor/autoload_runtime.php';
!!        › 
!!        arguments: {
!!          "/home/florian/projects/uc-app2/vendor/autoload_runtime.php"
!!        }
!!      }
!!    }
!!  }
!!  2025-07-26T13:22:00+00:00 [critical] Uncaught Error: syntax error, unexpected token "<<"

See https://github.com/symfony/config/blob/7.3/Builder/ConfigBuilderGenerator.php#L288-L298

How to reproduce

Try a composer update that requires symfony/config 7.3

Possible Solution

Fixing the forgotten merge conflict :)

Additional Context

No response

[xabbuh]

thanks for the heads up, should be fixed with #61244