Making Resets Passwords functionality I got \Mail\\Factory] is not instantiable error - lumen

Question

In my lumen 8.0 app I want to add Resets Passwords functionality reading
Trying to reset Passwords in Lumen
article but I got error :
{
"message": "Target [Illuminate\\Contracts\\Mail\\Factory] is not instantiable while building [Illuminate\\Notifications\\Channels\\MailChannel].",
"exception": "Illuminate\\Contracts\\Container\\BindingResolutionException",
"file": "/mnt/_work_sdb8/wwwroot/LumenProjects/PublishPagesAPI/vendor/illuminate/container/Container.php",
"line": 1089,
"trace": [
{
"file": "/mnt/_work_sdb8/wwwroot/LumenProjects/PublishPagesAPI/vendor/illuminate/container/Container.php",
"line": 882,
"function": "notInstantiable",
"class": "Illuminate\\Container\\Container",
"type": "->"
},
{
"file": "/mnt/_work_sdb8/wwwroot/LumenProjects/PublishPagesAPI/vendor/illuminate/container/Container.php",
"line": 754,
"function": "build",
"class": "Illuminate\\Container\\Container",
"type": "->"
},
{
"file": "/mnt/_work_sdb8/wwwroot/LumenProjects/PublishPagesAPI/vendor/illuminate/container/Container.php",
"line": 692,
"function": "resolve",
"class": "Illuminate\\Container\\Container",
"type": "->"
},
In my composer.json :
{
"name": "laravel/lumen",
"description": "The Laravel Lumen Framework.",
"keywords": ["framework", "laravel", "lumen"],
"license": "MIT",
"type": "project",
"require": {
"php": "^7.3|^8.0",
"anik/form-request": "^4.2",
"cviebrock/eloquent-sluggable": "^8.0",
"dusterio/lumen-passport": "^0.3.4",
"flipbox/lumen-generator": "^8.2",
"guzzlehttp/guzzle": "^7.3",
"illuminate/mail": "^8.48",
"illuminate/notifications": "^8.49",
"intervention/image": "^2.5",
"laravel/lumen-framework": "^8.0",
"league/flysystem": " ~1.0"
},
"require-dev": {
"fakerphp/faker": "^1.9.1",
"mockery/mockery": "^1.3.1",
"phpunit/phpunit": "^9.3"
},
"autoload": {
"files": [
"app/library/helper.php"
],
"psr-4": {
"App\\": "app/",
"Database\\Factories\\": "database/factories/",
"Database\\Seeders\\": "database/seeders/"
}
},
"autoload-dev": {
"classmap": [
"tests/"
]
},
"config": {
"preferred-install": "dist",
"sort-packages": true,
"optimize-autoloader": true
},
"minimum-stability": "dev",
"prefer-stable": true,
"scripts": {
"post-root-package-install": [
"#php -r \"file_exists('.env') || copy('.env.example', '.env');\""
]
}
}
Do I need to install some packages and how to init it in my package ?

Answer 1

Reading branch https://github.com/laravel/lumen-framework/issues/1057 I found decision with adding lines :
$app->alias('mail.manager', Illuminate\Mail\MailManager::class);
$app->alias('mail.manager', Illuminate\Contracts\Mail\Factory::class);
in file bootstrap/app.php. And it works!