Composer PSR-4 Autoload Interface Deprecation Notice

Question

I'm having trouble understanding what's wrong with this simple interface.

<?php

namespace App\Interfaces;

use Illuminate\View\View;

interface renderData
{
        public function renderAsHtml(): View;
}

When I composer dump-autoload i receive the following notice

Deprecation Notice: Class App\Interfaces\renderData located in ./app/Interfaces/RenderData.php does not comply with psr-4 autoloading standard. It will not autoload anymore in Composer v2.0.

composer.json autoload part:

    "autoload": {
        "psr-4": {
            "App\\": "app/"
        },
        "classmap": [
            "database/seeds",
            "database/factories"
        ]
     },

Folder structure is:

<root_project>
 app
 Console
 ...

I have already try to rename app to App then dump-autoload but the problem persist.

can edit the post and you share `autoload` part of your `composer.json` ? Also what is the folder structure of this class ? — Ersoy, Jun 10 '20 at 22:14
Check for case-sensitive file and class names - you've named your file `RenderData.php` with a capital `R`, but your interface uses a lower-cased `r` — Nico Haase, Jul 15 '20 at 09:33
Thanks @NicoHaase Typo on my side. I was wondering why all the others were working and this specific interface was throwing a warning. Since I always follow a standard, I had not paid attention to the namings — Kalema Edgar, Oct 11 '21 at 15:40

score 11 · Accepted Answer · answered Jun 11 '20 at 00:13

11

It could be that first letter of ‘app’ folder is in small case in app/Interfaces/RenderData’, but in the namespace is in upper case in ‘App\Interfaces’.

Make sure the folder structure and naming matches namespace.

answered Jun 11 '20 at 00:13

Svetlozar Stoyanov

146
1
5

Yes, it could be but how can I fix it? I've added new informations to the main thread. – Alberto Ar3s Jun 11 '20 at 13:19
1

Capitalize the app folder in you project directory. – msmahon Jun 11 '20 at 14:16
Either rename folder from `app\` to `App\\`, i.e. capitalize it, Either rename interface from `App\Interfaces` to `app\Interfaces`, i.e. make it lower case. – Svetlozar Stoyanov Jun 11 '20 at 17:45
1

Why does App\Models works but we have to use app\... for our code? – e-Fungus Jun 18 '21 at 16:38

score 5 · Answer 2 · edited Nov 19 '20 at 23:21

5

This is the main reason for composer's latest version.

Check your composer version using

composer -V

Install another version using

composer self-update 1.6.3

and delete the vendor folder from your project.

And use the following commands:

composer install
composer update
composer dump-autoload

Hope it will work.

edited Nov 19 '20 at 23:21

PiCTo

924
1
11
23

answered Nov 19 '20 at 12:44

Mahadi Hassan Babu

381
4
7

Composer PSR-4 Autoload Interface Deprecation Notice

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