Uncaught LogicException: Symfony Runtime is missing. Try running "composer require symfony/runtime"

[norkunas]

This was started in my CI 3 days ago for some reason. Locally everything works. Deployment to production works, only in CI.
runtime/frankenphp-symfony and symfony/runtime are defined in composer.json

php-1 | PHP Fatal error: Uncaught LogicException: Symfony Runtime is missing. Try running "composer require symfony/runtime". in /app/bin/console:8
php-1 | Stack trace:
php-1 | #0 {main}
php-1 | thrown in /app/bin/console on line 8

I'm also trying to add frankenphp to another existing project. After build, compose logs shows:

php-1 | Symfony �[32m7.2.7�[39m (env: �[33mdev�[39m, debug: �[33mtrue�[39m)
php-1 | PHP app ready!
php-1 | 2025/07/01 07:39:02.483 �[34mINFO�[0m maxprocs: Leaving GOMAXPROCS=16: CPU quota undefined
php-1 | 2025/07/01 07:39:02.483 �[34mINFO�[0m GOMEMLIMIT is updated {"package": "github.com/KimMachineGun/automemlimit/memlimit", "GOMEMLIMIT": 37236558643, "previous": 9223372036854775807}
php-1 | 2025/07/01 07:39:02.483 �[34mINFO�[0m using config from file {"file": "/etc/frankenphp/Caddyfile"}
php-1 | 2025/07/01 07:39:02.484 �[34mINFO�[0m adapted config to JSON {"adapter": "caddyfile"}
php-1 | 2025/07/01 07:39:02.484 �[33mWARN�[0m Caddyfile input is not formatted; run 'caddy fmt --overwrite' to fix inconsistencies {"adapter": "caddyfile", "file": "/etc/frankenphp/Caddyfile", "line": 2}
php-1 | 2025/07/01 07:39:02.485 �[34mINFO�[0m admin admin endpoint started {"address": "localhost:2019", "enforce_origin": false, "origins": ["//localhost:2019", "//[::1]:2019", "//127.0.0.1:2019"]}
php-1 | 2025/07/01 07:39:02.485 �[34mINFO�[0m http.auto_https server is listening only on the HTTPS port but has no TLS connection policies; adding one to enable TLS {"server_name": "srv0", "https_port": 443}
php-1 | 2025/07/01 07:39:02.485 �[34mINFO�[0m http.auto_https enabling automatic HTTP->HTTPS redirects {"server_name": "srv0"}
php-1 | 2025/07/01 07:39:02.485 �[33mWARN�[0m http.auto_https server is listening only on the HTTP port, so no automatic HTTPS will be applied to this server {"server_name": "srv1", "http_port": 80}
php-1 | 2025/07/01 07:39:02.485 �[34mINFO�[0m tls.cache.maintenance started background certificate maintenance {"cache": "0xc00042e580"}
php-1 | 2025/07/01 07:39:02.486 �[33mWARN�[0m http.handlers.mercure Setting the transport_url or the MERCURE_TRANSPORT_URL environment variable is deprecated, use the "transport" directive instead
php-1 | 2025/07/01 07:39:02.486 �[33mWARN�[0m http.handlers.mercure Setting the transport_url or the MERCURE_TRANSPORT_URL environment variable is deprecated, use the "transport" directive instead
php-1 | 2025/07/01 07:39:02.664 �[31mERROR�[0m frankenphp PHP Fatal error: Uncaught Error: Class "Runtime\FrankenPhpSymfony\Runtime" not found in /app/vendor/autoload_runtime.php:16
php-1 | Stack trace:
php-1 | #0 /app/public/index.php(7): require_once()
php-1 | #1 {main}
php-1 | thrown in /app/vendor/autoload_runtime.php on line 16 {"syslog_level": "err"}
php-1 | github.com/dunglas/frankenphp.go_log
php-1 | /go/src/app/frankenphp.go:594
php-1 | _cgoexp_7f96651acbac_go_log
php-1 | _cgo_gotypes.go:1216
php-1 | runtime.cgocallbackg1
php-1 | /usr/local/go/src/runtime/cgocall.go:446
php-1 | runtime.cgocallbackg
php-1 | /usr/local/go/src/runtime/cgocall.go:350
php-1 | runtime.cgocallback
php-1 | /usr/local/go/src/runtime/asm_amd64.s:1084

[7-zete-7]

Hi @norkunas!

This was started in my CI 3 days ago for some reason. Locally everything works. Deployment to production works, only in CI.
runtime/frankenphp-symfony and symfony/runtime are defined in composer.json

There is probably some nuance in your CI. I can guess that these packages may be missing from the vendor directory when CI is running (perhaps the vendor directory is cached).

I'm also trying to add frankenphp to another existing project. <…>

Have you added a dependency of the runtime/frankenphp-symfony package to an existing project?

The current docs don't contain information about the need to install this package. See #809

[norkunas]

Hey @7-zete-7,

There is probably some nuance in your CI. I can guess that these packages may be missing from the vendor directory when CI is running (perhaps the vendor directory is cached).

But if previously was working, then suddenly vendor was cached without symfony/runtime ? 🤔

Have you added a dependency of the runtime/frankenphp-symfony package to an existing project?

Yes, i looked through issues before reporting, so I've added symfony/runtime and runtime/frankenphp-symfony packages,
but after some unrelated changes this error disappeared, but when accessing project i'm getting fully empty response :D