I’m launching a new website with TYPO3 13.1, using WAMP. I need to create a custom local extension in order to store all my custom controllers, models, viewhelpers, files etc…

• I am in “composer mode”
• I am developing my extension from scratch to avoid useless files/datas
• I added my extension into the TYPO3 root composer.json by adding a custom repository
• I made a composer update

Perfect! My extension has been installed -> I can see the package by doing a composer show.
Problem: TYPO3 doesn’t recognize it:

• My extension is not visible when I do php vendor/bin/typo3 extension:setup
• It is not displayed inside the extension list (backend Admin Tools > Extensions)

How do you make it visible for Typo3 ? It should be automatic but it’s not.
By the way I did install another extension (georgringer/news) the same way and it works : I believe that’s maybe because I am missing a specific file? Maybe in the /Configuration/ folder?

This is my current page tree – I’m building it step by step and I’m only beginning:

/Classes/
/Resources/
composer.json
ext_emconf.php

Below is the composer.json of my extension:

{
   "name": "******/******",
   "version": "1.0.0",
   "description": "******************************",
   "type": "typo3-cms-extension",
   "authors": [
       {
           "name": "******",
           "email": "******",
           "homepage": "******",
           "role": "maintainer"
       }
   ],
   "homepage": "******",
   "support": {
   },
   "require": {
   },
   "prefer-stable": true,
   "autoload": {
       "psr-4": {
           "******\": "Classes/"
       }
   },
   "extra": {
       "typo3/cms": {
           "extension-key": "******"
       }
   }
} 

Asterisks “******” are hidding personal datas, of course it’s not inside the code 🙂