PHP 8.0 build "error: attribute 'json' missing"

My project ID c0821839-fe34-4bbb-8872-93446a76aec3, Its a CodeIgniter app with uuid is using PHP 8.1, railway build with 8.0 and its showing this error:

context: cb02218c96c8c58a2d28297cc916216d

╔═══════════════════════════════ Nixpacks v1.5.1 ══════════════════════════════╗
║ setup │ (php80.withExtensions (pe: pe.enabled ++ [pe.all.json ║
║ │ pe.all.mbstring pe.all.intl])), perl, nginx, libmysqlclient, ║
║ │ php80Packages.composer, php80Extensions.json, ║
║ │ php80Extensions.mbstring, php80Extensions.intl ║
║──────────────────────────────────────────────────────────────────────────────║
║ install │ mkdir -p /var/log/nginx && mkdir -p /var/cache/nginx ║
║ │ composer install --ignore-platform-reqs ║
║──────────────────────────────────────────────────────────────────────────────║
║ start │ php-fpm -y /assets/php-fpm.conf & nginx -c /app/nginx.conf ║
╚══════════════════════════════════════════════════════════════════════════════╝

...

#8 [4/9] RUN nix-env -if .nixpacks/nixpkgs-293a28df6d7ff3dec1e61e37cc4ee6e6c0fb0847.nix && nix-collect-garbage -d

#8 22.63 installing '293a28df6d7ff3dec1e61e37cc4ee6e6c0fb0847-env'

#8 23.05 error: attribute 'json' missing
#8 23.05
#8 23.05 at /app/.nixpacks/nixpkgs-293a28df6d7ff3dec1e61e37cc4ee6e6c0fb0847.nix:6:88:
#8 23.05
#8 23.05 5| let
#8 23.05 6| APPEND_LIBRARY_PATH = "${lib.makeLibraryPath [ libmysqlclient php80Extensions.intl php80Extensions.json php80Extensions.mbstring ] }";
#8 23.05 | ^
#8 23.05 7| myLibraries = writeText "libraries" ''
#8 23.05 (use '--show-trace' to show detailed location information)

railway supports php 8.0/8.1/8.2 with the default being 8.2 the version is detected from your composer.json file

check what version is set in your composer.json file

Thanks @Brody, my composer has: "php": "^7.4 || ^8.0"

try pinning it to the specific version you want railway to use

I try it before, but the setup of nixpack says that php80Extensions.json is enabled and later don't find it. With 8.1 was the same

the problem start when I setup / as root

there is a public and app folder

if I setup the root at /public builds ok, but in the build only have the content of /public

@aleks - can you take over from here when you have some time?

^ he knows about php, I do not

Thanks!

please wait patiently and he will come help when he has some free time

Yes! Thanks again

I will write a post on CodeIgniter Forum when we resolved this: Deploy to Railway in a few seconds

Oh... is there a package called ext-json that you're requiring?

Oh, never mind, I have misdiagnosed.

Looks like this will require a change in Nixpacks, please hold.

PR is now open: https://github.com/railwayapp/nixpacks/pull/896

Thanks @aleks

11.3k line changes, wow

the team member that usually maintains nixpacks is on a little vacation right now, so we don't know when that will get merged, there's also other factors like the nixpacks version that aleks wants to merge into breaks some python apps, so it might be a while unfortunately

I added another laravel example

Hi guys! Without the json extesion build ok, I have some concerns: I need to change permissions to a folder to be writeable, and the other is I need to point the root of nginx to /public

for nginx i copied the template but in the deployment console shows errors like nginx: [emerg] host not found in "${PORT}" of the "listen" directive in /app/nginx.conf:25