Its a php issue but maybe I missing a 'Drupal 8' thing ?

I have this custom module :

> mymodule (directory)
    > mymodule.module
    > src (directory)
        > myclass.php
        > myclassinterface.php

In myclass.php, I have :

namespace Drupal\mymodule\src;

Class myclass implements myclassinterface{

In my mymodule.module, I have :

use Drupal\mymodule\src\myclass;
function mymodule_form_alter(&$form, \Drupal\Core\Form\FormStateInterface $form_state, $form_id){
    $test = new myclass();
    // or $test = new Drupal\mymodule\src\myclass(); // same error, class not found

And when I load a page via my browser, I get a blank page and apache log tell me the class 'Drupal\mymodule\src\myclass' not found.

I don't understand..where is my mistake ?

1 Answer 1


Drop the "src" from your namespace and use statements. Wipe the cache after making that change.

  • remove src is the solution, thanks =) can you explan why the "src" cause issue ? Commented Sep 15, 2016 at 1:38
  • 4
    The autoloader looks in the src folder, so there is no need to specify it.
    – Kevin
    Commented Sep 15, 2016 at 1:40
  • 4
    Here is a link on how it works drupal.org/node/2156625
    – Kevin
    Commented Sep 15, 2016 at 1:41

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