Composer 2.0 type warnings

[loqus]

Question

I generated a module a year ago and it works really well, but the last months after running composer update i get an error message like "does not comply with psr-4 autoloading standard. It will not autoload anymore in Composer v2.0.".

Is that something you can fix in a future generator? Or maybe change the readme to incorporate changes for composer v2

[bencroker]

This should be fixed in an update here. Can you show us which classes/files are causing the messages?

[kevinmu17]

This should be fixed in an update here. Can you show us which classes/files are causing the messages?

All of them:
Class modules\custommodule\migrations
Class modules\custommodule\records
Class modules\custommodule\models
Class modules\custommodule\variables
Class modules\custommodule\assetbundles
Class modules\custommodule\assetbundles
Class modules\custommodule\assetbundles
Class modules\custommodule\fields
Class modules\custommodule\jobs
Class modules\custommodule\twigextensions
Class modules\custommodule\controllers
Class modules\custommodule\controllers
Class modules\custommodule\services
Class modules\custommodule\widgets
Class modules\custommodule\console
Class modules\custommodule\CustomModule

[kevinmu17]

Okay found the issue:
in the composer.json you need these lines

  "autoload": {
    "psr-4": {
      "modules\\custommodule\\": "modules/custommodule/src"
    }
  },

beware of the trailing \, i overlooked them and was searching for hours :)

[bencroker]

That should already be documented in the module's README.md file:
https://github.com/nystudio107/generator-craftplugin/blob/master/app/templates/module_api_version_3_0/_README.md#installation