Laravel custom package not loading

I have package in following path

packages/mypackage/demo

and my service provider is in

packages/mypackage/demo/src/vis/MyserviceProvider.php

and i have added in composer.json as

"psr-4": {
      "Custom\\MyPackage\\": "packages/mypackage/demo/src/vis/",

        "App\\": "app/"
    }


    Ran `composer update` and ran `composer dump-autoload -o`


    and added service provider in app.php

Custom\MyPackage\MyserviceProvider::class,

getting following error

MyserviceProvider not found

Can nay one help me how i can fix this issue

via Chebli Mohamed