Can't install dacastro4/laravel-gmail package due to conflicts with another require.

[hispasatlab]

My composer.json:

{
    "name": "laravel/laravel",
    "type": "project",
    "description": "The Laravel Framework.",
    "keywords": ["framework", "laravel"],
    "license": "MIT",
    "require": {
        "php": "^8.1",
        "ext-dom": "*",
        "ext-json": "*",
        "ext-libxml": "*",
        "ext-pdo": "*",
        "ext-simplexml": "*",
        "ext-xmlreader": "*",
        "ext-xmlwriter": "*",
        "ahmedsaoud31/laravel-permission-to-vuejs": "dev-master",
        "based/momentum-modal": "^0.2.0",
        "doctrine/dbal": "3.6.3",
        "guzzlehttp/guzzle": "7.7.0",
        "inertiajs/inertia-laravel": "0.6.9",
        "laravel/framework": "10.13.2",
        "laravel/sanctum": "3.2.5",
        "laravel/slack-notification-channel": "2.5.0",
        "laravel/tinker": "2.8.1",
        "league/flysystem-aws-s3-v3": "3.15.0",
        "league/flysystem-ftp": "3.15.0",
        "league/flysystem-sftp-v3": "^3.0",
        "maatwebsite/excel": "^3.1",
        "mckenziearts/laravel-notify": "^2.4",
        "predis/predis": "2.1.2",
        "pusher/pusher-php-server": "^7.2",
        "spatie/laravel-data": "3.6.0",
        "spatie/laravel-permission": "^6.3",
        "tightenco/ziggy": "1.5.2"
    },
    "require-dev": {
        "barryvdh/laravel-ide-helper": "2.13.0",
        "fakerphp/faker": "1.22.0",
        "laravel/breeze": "1.20.1",
        "laravel/pint": "1.10.1",
        "laravel/sail": "1.22.0",
        "mockery/mockery": "1.6.1",
        "nunomaduro/collision": "7.5.2",
        "pestphp/pest": "2.5.3",
        "pestphp/pest-plugin-laravel": "2.0.0",
        "roave/security-advisories": "dev-latest",
 "spatie/laravel-ignition": "2.1.3"
    },
    "autoload": {
        "psr-4": {
            "App\\": "app/",
            "Database\\Factories\\": "database/factories/",
            "Database\\Seeders\\": "database/seeders/"
        }
    },
    "autoload-dev": {
        "psr-4": {
            "Tests\\": "tests/"
        }
    },
    "scripts": {
        "post-autoload-dump": [
            "Illuminate\\Foundation\\ComposerScripts::postAutoloadDump",
            "@php artisan package:discover --ansi"
        ],
        "post-update-cmd": [
            "@php artisan vendor:publish --tag=laravel-assets --ansi --force"
        ],
        "post-root-package-install": [
            "@php -r \"file_exists('.env') || copy('.env.example', '.env');\""
        ],
        "post-create-project-cmd": [
            "@php artisan key:generate --ansi"
        ]
    },
    "extra": {
        "laravel": {
            "dont-discover": [
                "barryvdh/laravel-ide-helper"
            ]
        }
    },
    "config": {
        "optimize-autoloader": true,
        "preferred-install": "dist",
        "sort-packages": true,
        "allow-plugins": {
            "pestphp/pest-plugin": true
        }
    },
    "minimum-stability": "stable",
    "prefer-stable": true
}

Output of composer diagnose:

Checking composer.json: WARNING
require.doctrine/dbal : exact version constraints (3.6.3) should be avoided if the package follows semantic versioning
require.guzzlehttp/guzzle : exact version constraints (7.7.0) should be avoided if the package follows semantic versioning
require.laravel/framework : exact version constraints (10.13.2) should be avoided if the package follows semantic versioning
require.laravel/sanctum : exact version constraints (3.2.5) should be avoided if the package follows semantic versioning
require.laravel/slack-notification-channel : exact version constraints (2.5.0) should be avoided if the package follows semantic versioning
require.laravel/tinker : exact version constraints (2.8.1) should be avoided if the package follows semantic versioning
require.league/flysystem-aws-s3-v3 : exact version constraints (3.15.0) should be avoided if the package follows semantic versioning
require.league/flysystem-ftp : exact version constraints (3.15.0) should be avoided if the package follows semantic versioning
require.predis/predis : exact version constraints (2.1.2) should be avoided if the package follows semantic versioning
require.spatie/laravel-data : exact version constraints (3.6.0) should be avoided if the package follows semantic versioning
require.tightenco/ziggy : exact version constraints (1.5.2) should be avoided if the package follows semantic versioning
Checking platform settings: OK
Checking git settings: OK git version 2.34.1
Checking http connectivity to packagist: OK
Checking https connectivity to packagist: OK
Checking github.com rate limit: OK
Checking disk free space: OK
Checking pubkeys: FAIL
Missing pubkey for tags verification
Missing pubkey for dev verification
Run composer self-update --update-keys to set them up
Checking composer version: You are not running the latest stable version, run `composer self-update` to update (2.5.5 => 2.7.2)
Composer version: 2.5.5
PHP version: 8.1.2
PHP binary path: /usr/bin/php8.1
OpenSSL version: OpenSSL 3.0.2 15 Mar 2022
cURL version: 7.81.0 libz 1.2.11 ssl OpenSSL/3.0.2
zip: extension present, unzip present, 7-Zip not available

When I run this command:

composer require -vvv dacastro4/laravel-gmail

I get the following output:

Running 2.5.5 (2023-03-21 11:50:05) with PHP 8.1.2-1ubuntu2.14 on Linux / 5.15.0-73-generic
Reading ./composer.json (/var/www/rockets/composer.json)
Loading config file ./composer.json (/var/www/rockets/composer.json)
Checked CA file /etc/pki/tls/certs/ca-bundle.crt does not exist or it is not a file.
Checked directory /etc/pki/tls/certs/ca-bundle.crt does not exist or it is not a directory.
Checked CA file /etc/ssl/certs/ca-certificates.crt: valid
Executing command (/var/www/rockets): 'git' 'branch' '-a' '--no-color' '--no-abbrev' '-v'
Failed to initialize global composer: Composer could not find the config file: /home/sammy/.config/composer/composer.json

Reading /var/www/rockets/vendor/composer/installed.json
Loading plugin Pest\Plugin\Manager (from pestphp/pest-plugin)
Reading /home/sammy/.cache/composer/repo/https---repo.packagist.org/packages.json from cache
Downloading https://repo.packagist.org/packages.json if modified
[304] https://repo.packagist.org/packages.json
Reading /home/sammy/.cache/composer/repo/https---repo.packagist.org/provider-dacastro4~laravel-gmail.json from cache
Downloading https://repo.packagist.org/p2/dacastro4/laravel-gmail.json if modified
[304] https://repo.packagist.org/p2/dacastro4/laravel-gmail.json
Reading /home/sammy/.cache/composer/repo/https---repo.packagist.org/provider-dacastro4~laravel-gmail.json from cache
Reading /home/sammy/.cache/composer/repo/https---repo.packagist.org/provider-dacastro4~laravel-gmail~dev.json from cache
Downloading https://repo.packagist.org/p2/dacastro4/laravel-gmail~dev.json if modified
[304] https://repo.packagist.org/p2/dacastro4/laravel-gmail~dev.json
./composer.json has been updated
Unloading plugin Pest\Plugin\Manager
Reading ./composer.json (/var/www/rockets/composer.json)
Loading config file ./composer.json (/var/www/rockets/composer.json)
Executing command (/var/www/rockets): 'git' 'branch' '-a' '--no-color' '--no-abbrev' '-v'
Failed to initialize global composer: Composer could not find the config file: /home/sammy/.config/composer/composer.json

Reading /var/www/rockets/vendor/composer/installed.json
Loading plugin Pest\Plugin\Manager_composer_tmp0 (from pestphp/pest-plugin)
Running composer update dacastro4/laravel-gmail
Reading ./composer.lock (/var/www/rockets/composer.lock)
Loading composer repositories with package information
Reading /home/sammy/.cache/composer/repo/https---repo.packagist.org/packages.json from cache
Downloading https://repo.packagist.org/packages.json if modified
[304] https://repo.packagist.org/packages.json
Reading /home/sammy/.cache/composer/repo/https---repo.packagist.org/provider-dacastro4~laravel-gmail.json from cache
Downloading https://repo.packagist.org/p2/dacastro4/laravel-gmail.json if modified
[304] https://repo.packagist.org/p2/dacastro4/laravel-gmail.json
Reading /home/sammy/.cache/composer/repo/https---repo.packagist.org/provider-google~apiclient.json from cache
Downloading https://repo.packagist.org/p2/google/apiclient.json if modified
Reading /home/sammy/.cache/composer/repo/https---repo.packagist.org/provider-swiftmailer~swiftmailer.json from cache
Downloading https://repo.packagist.org/p2/swiftmailer/swiftmailer.json if modified
[304] https://repo.packagist.org/p2/google/apiclient.json
[304] https://repo.packagist.org/p2/swiftmailer/swiftmailer.json
Reading /home/sammy/.cache/composer/repo/https---repo.packagist.org/provider-google~auth.json from cache
Downloading https://repo.packagist.org/p2/google/auth.json if modified
Reading /home/sammy/.cache/composer/repo/https---repo.packagist.org/provider-google~apiclient-services.json from cache
Downloading https://repo.packagist.org/p2/google/apiclient-services.json if modified
Reading /home/sammy/.cache/composer/repo/https---repo.packagist.org/provider-firebase~php-jwt.json from cache
Downloading https://repo.packagist.org/p2/firebase/php-jwt.json if modified
Reading /home/sammy/.cache/composer/repo/https---repo.packagist.org/provider-symfony~polyfill-iconv.json from cache
Downloading https://repo.packagist.org/p2/symfony/polyfill-iconv.json if modified
[304] https://repo.packagist.org/p2/google/auth.json
[304] https://repo.packagist.org/p2/google/apiclient-services.json
[304] https://repo.packagist.org/p2/firebase/php-jwt.json
[304] https://repo.packagist.org/p2/symfony/polyfill-iconv.json
Built pool.
Running pool optimizer.
Pool optimizer completed in 0.045 seconds
Found 853 package versions referenced in your dependency graph. 539 (63%) were optimized away.
Updating dependencies
Generating rules
Resolving dependencies through SAT

Dependency resolution completed in 0.001 seconds
Reading /home/sammy/.cache/composer/repo/https---repo.packagist.org/provider-illuminate~auth.json from cache
Downloading https://repo.packagist.org/p2/illuminate/auth.json if modified
[304] https://repo.packagist.org/p2/illuminate/auth.json
Reading /home/sammy/.cache/composer/repo/https---repo.packagist.org/provider-illuminate~auth.json from cache
Reading /home/sammy/.cache/composer/repo/https---repo.packagist.org/provider-illuminate~auth.json from cache
Reading /home/sammy/.cache/composer/repo/https---repo.packagist.org/provider-illuminate~auth.json from cache
Reading /home/sammy/.cache/composer/repo/https---repo.packagist.org/provider-illuminate~auth.json from cache
Reading /home/sammy/.cache/composer/repo/https---repo.packagist.org/provider-illuminate~auth.json from cache
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - dacastro4/laravel-gmail[v0.1, v0.2, v0.2.1, v0.2.2, v0.2.3, v0.3, v0.3.1, v0.3.2, v0.3.3, v0.3.4, v0.3.5, v0.3.6, v0.4, v0.4.1, v0.4.2, v0.4.3, v0.4.4, v0.5, v0.6, v0.6.1, v0.6.1.1, v0.6.2, v1.0.0, v1.0.1, v1.0.2, v1.0.3, v1.0.4, v1.0.5, v1.0.6, v1.1, v1.2, v2.0, v2.0.1, v2.0.2, v2.0.3, v2.0.4, v3.0.0] require illuminate/auth ~5.0|~5.1|~5.2|~5.3 -> found illuminate/auth[v5.0.0, v5.0.4, v5.0.22, v5.0.25, v5.0.26, v5.0.28, v5.0.33, v5.1.1, v5.1.2, v5.1.6, v5.1.8, v5.1.13, v5.1.16, v5.1.20, v5.1.22, v5.1.25, v5.1.28, v5.1.30, v5.1.31, v5.1.41, v5.2.0, v5.2.6, v5.2.7, v5.2.19, v5.2.21, v5.2.24, v5.2.25, v5.2.26, v5.2.27, v5.2.28, v5.2.31, v5.2.32, v5.2.37, v5.2.43, v5.2.45, v5.3.0, v5.3.4, v5.3.16, v5.3.23, v5.4.0, v5.4.9, v5.4.13, v5.4.17, v5.4.19, v5.4.27, v5.4.36, v5.5.0, v5.5.2, v5.5.15, v5.5.16, v5.5.17, v5.5.28, v5.5.33, v5.5.34, v5.5.35, v5.5.36, v5.5.37, v5.5.39, v5.5.40, v5.5.41, v5.5.43, v5.5.44, v5.6.0, v5.6.1, v5.6.2, v5.6.3, v5.6.4, v5.6.5, v5.6.6, v5.6.7, v5.6.8, v5.6.9, v5.6.10, v5.6.11, v5.6.12, v5.6.13, v5.6.14, v5.6.15, v5.6.16, v5.6.17, v5.6.19, v5.6.20, v5.6.21, v5.6.22, v5.6.23, v5.6.24, v5.6.25, v5.6.26, v5.6.27, v5.6.28, v5.6.29, v5.6.30, v5.6.31, v5.6.32, v5.6.33, v5.6.34, v5.6.35, v5.6.36, v5.6.37, v5.6.38, v5.6.39, v5.7.0, v5.7.1, v5.7.2, v5.7.3, v5.7.4, v5.7.5, v5.7.6, v5.7.7, v5.7.8, v5.7.9, v5.7.10, v5.7.11, v5.7.15, 5.7.17, 5.7.18, 5.7.19, v5.7.20, v5.7.21, v5.7.22, v5.7.23, v5.7.26, v5.7.27, v5.7.28, v5.8.0, v5.8.2, v5.8.3, v5.8.4, v5.8.8, v5.8.9, v5.8.11, v5.8.12, v5.8.14, v5.8.15, v5.8.17, v5.8.18, v5.8.19, v5.8.20, v5.8.22, v5.8.24, v5.8.27, v5.8.28, v5.8.29, v5.8.30, v5.8.31, v5.8.32, v5.8.33, v5.8.34, v5.8.35, v5.8.36] but these were not loaded, likely because it conflicts with another require.
    - dacastro4/laravel-gmail[v3.1.0, v3.2.0, v3.2.1, v3.2.2, v3.2.3, v3.2.4, v3.2.5, v3.2.6, v4.0, v4.0.1, v4.0.2, v4.0.3, v4.0.4, v4.0.41, v5.0.0, v5.1] require php ^7.2 -> your php version (8.1.2) does not satisfy that requirement.
    - dacastro4/laravel-gmail[v5.1.1, v5.1.2, v5.1.21] require illuminate/auth ~5.8|^6.0|^7.0|^8.0 -> found illuminate/auth[v5.8.0, v5.8.2, v5.8.3, v5.8.4, v5.8.8, v5.8.9, v5.8.11, v5.8.12, v5.8.14, v5.8.15, v5.8.17, v5.8.18, v5.8.19, v5.8.20, v5.8.22, v5.8.24, v5.8.27, v5.8.28, v5.8.29, v5.8.30, v5.8.31, v5.8.32, v5.8.33, v5.8.34, v5.8.35, v5.8.36, v6.0.0, v6.0.1, v6.0.2, v6.0.3, v6.0.4, v6.1.0, v6.2.0, v6.3.0, v6.4.1, v6.5.0, v6.5.1, v6.5.2, v6.6.0, v6.6.1, v6.6.2, v6.7.0, v6.8.0, v6.10.0, v6.11.0, v6.12.0, v6.13.0, v6.13.1, v6.14.0, v6.15.0, v6.15.1, v6.16.0, v6.17.0, v6.17.1, v6.18.0, v6.18.1, v6.18.2, v6.18.3, v6.18.4, v6.18.5, v6.18.6, v6.18.7, v6.18.8, v6.18.9, v6.18.10, v6.18.11, v6.18.12, v6.18.13, v6.18.14, v6.18.15, v6.18.16, v6.18.17, v6.18.18, v6.18.19, v6.18.20, v6.18.21, v6.18.22, v6.18.23, v6.18.24, v6.18.25, v6.18.26, v6.18.27, v6.18.28, v6.18.29, v6.18.30, v6.18.31, v6.18.32, v6.18.33, v6.18.34, v6.18.35, v6.18.36, v6.18.37, v6.18.38, v6.18.39, v6.18.40, v6.18.41, v6.18.42, v6.18.43, v6.19.0, v6.19.1, v6.20.0, v6.20.1, v6.20.2, v6.20.3, v6.20.4, v6.20.5, v6.20.6, v6.20.7, v6.20.8, v6.20.9, v6.20.10, v6.20.11, v6.20.12, v6.20.13, v6.20.14, v6.20.15, v6.20.16, v6.20.17, v6.20.18, v6.20.19, v6.20.20, v6.20.21, v6.20.22, v6.20.23, v6.20.24, v6.20.25, v6.20.26, v6.20.27, v6.20.28, v6.20.29, v6.20.30, v6.20.31, v6.20.32, v6.20.33, v6.20.34, v6.20.35, v6.20.36, v6.20.37, v6.20.38, v6.20.39, v6.20.40, v6.20.41, v6.20.42, v6.20.43, v6.20.44, v7.0.0, v7.0.1, v7.0.2, v7.0.3, v7.0.4, v7.0.5, v7.0.6, v7.0.7, v7.0.8, v7.1.0, v7.1.1, v7.1.2, v7.1.3, v7.2.0, v7.2.1, v7.2.2, v7.3.0, v7.4.0, v7.5.0, v7.5.1, v7.5.2, v7.6.0, v7.6.1, v7.6.2, v7.7.0, v7.7.1, v7.8.0, v7.8.1, v7.9.0, v7.9.1, v7.9.2, v7.10.0, v7.10.1, v7.10.2, v7.10.3, v7.11.0, v7.12.0, v7.13.0, v7.14.0, v7.14.1, v7.15.0, v7.16.0, v7.16.1, v7.17.0, v7.17.1, v7.17.2, v7.18.0, v7.19.0, v7.19.1, v7.20.0, v7.21.0, v7.22.0, v7.22.1, v7.22.2, v7.22.3, v7.22.4, v7.23.0, v7.23.1, v7.23.2, v7.24.0, v7.25.0, v7.26.0, v7.26.1, v7.27.0, v7.28.0, v7.28.1, v7.28.2, v7.28.3, v7.28.4, v7.29.0, v7.29.1, v7.29.2, v7.29.3, v7.30.0, v7.30.1, v7.30.2, v7.30.3, v7.30.4, v7.30.5, v7.30.6, v8.0.0, v8.0.1, v8.0.2, v8.0.3, v8.0.4, v8.1.0, v8.2.0, v8.3.0, v8.4.0, v8.5.0, v8.6.0, v8.7.0, v8.7.1, v8.8.0, v8.9.0, v8.10.0, v8.11.0, v8.11.1, v8.11.2, v8.12.0, v8.12.1, v8.12.2, v8.12.3, v8.13.0, v8.14.0, v8.15.0, v8.16.0, v8.16.1, v8.17.0, v8.17.2, v8.18.0, v8.18.1, v8.19.0, v8.20.0, v8.20.1, v8.21.0, v8.22.0, v8.22.1, v8.23.0, v8.23.1, v8.24.0, v8.25.0, v8.26.0, v8.26.1, v8.27.0, v8.28.0, v8.28.1, v8.29.0, v8.30.0, v8.30.1, v8.31.0, v8.32.0, v8.32.1, v8.33.0, v8.33.1, v8.34.0, v8.35.0, v8.35.1, v8.36.0, v8.36.1, v8.36.2, v8.37.0, v8.38.0, v8.39.0, v8.40.0, v8.41.0, v8.42.0, v8.42.1, v8.43.0, v8.44.0, v8.45.0, v8.45.1, v8.46.0, v8.47.0, v8.48.0, v8.48.1, v8.48.2, v8.49.0, v8.49.1, v8.49.2, v8.50.0, v8.51.0, v8.52.0, v8.53.0, v8.53.1, v8.54.0, v8.55.0, v8.56.0, v8.57.0, v8.58.0, v8.59.0, v8.60.0, v8.61.0, v8.62.0, v8.63.0, v8.64.0, v8.65.0, v8.66.0, v8.67.0, v8.68.0, v8.68.1, v8.69.0, v8.70.0, v8.70.1, v8.70.2, v8.71.0, v8.72.0, v8.73.0, v8.73.1, v8.73.2, v8.74.0, v8.75.0, v8.76.0, v8.76.1, v8.76.2, v8.77.0, v8.77.1, v8.78.0, v8.78.1, v8.79.0, v8.80.0, v8.81.0, v8.82.0, v8.83.0, v8.83.1, v8.83.2, v8.83.3, v8.83.4, v8.83.5, v8.83.6, v8.83.7, v8.83.8, v8.83.9, v8.83.10, v8.83.11, v8.83.12, v8.83.13, v8.83.14, v8.83.15, v8.83.16, v8.83.17, v8.83.18, v8.83.19, v8.83.20, v8.83.21, v8.83.22, v8.83.23, v8.83.24, v8.83.25, v8.83.26, v8.83.27] but these were not loaded, likely because it conflicts with another require.
    - dacastro4/laravel-gmail[v6.0, v6.1] require illuminate/auth ~5.8|^6.0|^7.0|^8.0|^9.0 -> found illuminate/auth[v5.8.0, v5.8.2, v5.8.3, v5.8.4, v5.8.8, v5.8.9, v5.8.11, v5.8.12, v5.8.14, v5.8.15, v5.8.17, v5.8.18, v5.8.19, v5.8.20, v5.8.22, v5.8.24, v5.8.27, v5.8.28, v5.8.29, v5.8.30, v5.8.31, v5.8.32, v5.8.33, v5.8.34, v5.8.35, v5.8.36, v6.0.0, v6.0.1, v6.0.2, v6.0.3, v6.0.4, v6.1.0, v6.2.0, v6.3.0, v6.4.1, v6.5.0, v6.5.1, v6.5.2, v6.6.0, v6.6.1, v6.6.2, v6.7.0, v6.8.0, v6.10.0, v6.11.0, v6.12.0, v6.13.0, v6.13.1, v6.14.0, v6.15.0, v6.15.1, v6.16.0, v6.17.0, v6.17.1, v6.18.0, v6.18.1, v6.18.2, v6.18.3, v6.18.4, v6.18.5, v6.18.6, v6.18.7, v6.18.8, v6.18.9, v6.18.10, v6.18.11, v6.18.12, v6.18.13, v6.18.14, v6.18.15, v6.18.16, v6.18.17, v6.18.18, v6.18.19, v6.18.20, v6.18.21, v6.18.22, v6.18.23, v6.18.24, v6.18.25, v6.18.26, v6.18.27, v6.18.28, v6.18.29, v6.18.30, v6.18.31, v6.18.32, v6.18.33, v6.18.34, v6.18.35, v6.18.36, v6.18.37, v6.18.38, v6.18.39, v6.18.40, v6.18.41, v6.18.42, v6.18.43, v6.19.0, v6.19.1, v6.20.0, v6.20.1, v6.20.2, v6.20.3, v6.20.4, v6.20.5, v6.20.6, v6.20.7, v6.20.8, v6.20.9, v6.20.10, v6.20.11, v6.20.12, v6.20.13, v6.20.14, v6.20.15, v6.20.16, v6.20.17, v6.20.18, v6.20.19, v6.20.20, v6.20.21, v6.20.22, v6.20.23, v6.20.24, v6.20.25, v6.20.26, v6.20.27, v6.20.28, v6.20.29, v6.20.30, v6.20.31, v6.20.32, v6.20.33, v6.20.34, v6.20.35, v6.20.36, v6.20.37, v6.20.38, v6.20.39, v6.20.40, v6.20.41, v6.20.42, v6.20.43, v6.20.44, v7.0.0, v7.0.1, v7.0.2, v7.0.3, v7.0.4, v7.0.5, v7.0.6, v7.0.7, v7.0.8, v7.1.0, v7.1.1, v7.1.2, v7.1.3, v7.2.0, v7.2.1, v7.2.2, v7.3.0, v7.4.0, v7.5.0, v7.5.1, v7.5.2, v7.6.0, v7.6.1, v7.6.2, v7.7.0, v7.7.1, v7.8.0, v7.8.1, v7.9.0, v7.9.1, v7.9.2, v7.10.0, v7.10.1, v7.10.2, v7.10.3, v7.11.0, v7.12.0, v7.13.0, v7.14.0, v7.14.1, v7.15.0, v7.16.0, v7.16.1, v7.17.0, v7.17.1, v7.17.2, v7.18.0, v7.19.0, v7.19.1, v7.20.0, v7.21.0, v7.22.0, v7.22.1, v7.22.2, v7.22.3, v7.22.4, v7.23.0, v7.23.1, v7.23.2, v7.24.0, v7.25.0, v7.26.0, v7.26.1, v7.27.0, v7.28.0, v7.28.1, v7.28.2, v7.28.3, v7.28.4, v7.29.0, v7.29.1, v7.29.2, v7.29.3, v7.30.0, v7.30.1, v7.30.2, v7.30.3, v7.30.4, v7.30.5, v7.30.6, v8.0.0, v8.0.1, v8.0.2, v8.0.3, v8.0.4, v8.1.0, v8.2.0, v8.3.0, v8.4.0, v8.5.0, v8.6.0, v8.7.0, v8.7.1, v8.8.0, v8.9.0, v8.10.0, v8.11.0, v8.11.1, v8.11.2, v8.12.0, v8.12.1, v8.12.2, v8.12.3, v8.13.0, v8.14.0, v8.15.0, v8.16.0, v8.16.1, v8.17.0, v8.17.2, v8.18.0, v8.18.1, v8.19.0, v8.20.0, v8.20.1, v8.21.0, v8.22.0, v8.22.1, v8.23.0, v8.23.1, v8.24.0, v8.25.0, v8.26.0, v8.26.1, v8.27.0, v8.28.0, v8.28.1, v8.29.0, v8.30.0, v8.30.1, v8.31.0, v8.32.0, v8.32.1, v8.33.0, v8.33.1, v8.34.0, v8.35.0, v8.35.1, v8.36.0, v8.36.1, v8.36.2, v8.37.0, v8.38.0, v8.39.0, v8.40.0, v8.41.0, v8.42.0, v8.42.1, v8.43.0, v8.44.0, v8.45.0, v8.45.1, v8.46.0, v8.47.0, v8.48.0, v8.48.1, v8.48.2, v8.49.0, v8.49.1, v8.49.2, v8.50.0, v8.51.0, v8.52.0, v8.53.0, v8.53.1, v8.54.0, v8.55.0, v8.56.0, v8.57.0, v8.58.0, v8.59.0, v8.60.0, v8.61.0, v8.62.0, v8.63.0, v8.64.0, v8.65.0, v8.66.0, v8.67.0, v8.68.0, v8.68.1, v8.69.0, v8.70.0, v8.70.1, v8.70.2, v8.71.0, v8.72.0, v8.73.0, v8.73.1, v8.73.2, v8.74.0, v8.75.0, v8.76.0, v8.76.1, v8.76.2, v8.77.0, v8.77.1, v8.78.0, v8.78.1, v8.79.0, v8.80.0, v8.81.0, v8.82.0, v8.83.0, v8.83.1, v8.83.2, v8.83.3, v8.83.4, v8.83.5, v8.83.6, v8.83.7, v8.83.8, v8.83.9, v8.83.10, v8.83.11, v8.83.12, v8.83.13, v8.83.14, v8.83.15, v8.83.16, v8.83.17, v8.83.18, v8.83.19, v8.83.20, v8.83.21, v8.83.22, v8.83.23, v8.83.24, v8.83.25, v8.83.26, v8.83.27, v9.0.0, v9.0.1, v9.0.2, v9.1.0, v9.2.0, v9.3.0, v9.3.1, v9.4.0, v9.4.1, v9.5.0, v9.5.1, v9.6.0, v9.7.0, v9.8.0, v9.8.1, v9.9.0, v9.10.0, v9.10.1, v9.11.0, v9.12.0, v9.12.1, v9.12.2, v9.13.0, v9.14.0, v9.14.1, v9.15.0, v9.16.0, v9.17.0, v9.18.0, v9.19.0, v9.20.0, v9.21.0, v9.21.1, v9.21.2, v9.21.3, v9.21.4, v9.21.5, v9.21.6, v9.22.0, v9.22.1, v9.23.0, v9.24.0, v9.25.0, v9.25.1, v9.26.0, v9.26.1, v9.27.0, v9.28.0, v9.29.0, v9.30.0, v9.30.1, v9.31.0, v9.32.0, v9.33.0, v9.34.0, v9.35.0, v9.35.1, v9.36.0, v9.36.1, v9.36.2, v9.36.3, v9.36.4, v9.37.0, v9.38.0, v9.39.0, v9.40.0, v9.40.1, v9.41.0, v9.42.0, v9.42.1, v9.42.2, v9.43.0, v9.44.0, v9.45.0, v9.45.1, v9.46.0, v9.47.0, v9.48.0, v9.49.0, v9.50.0, v9.50.1, v9.50.2, v9.51.0, v9.52.0, v9.52.1, v9.52.2, v9.52.3, v9.52.4, v9.52.5, v9.52.6, v9.52.7, v9.52.8, v9.52.9, v9.52.10, v9.52.11, v9.52.12, v9.52.13, v9.52.14, v9.52.15, v9.52.16] but these were not loaded, likely because it conflicts with another require.
    - Root composer.json requires dacastro4/laravel-gmail * -> satisfiable by dacastro4/laravel-gmail[v0.1, v0.2, v0.2.1, v0.2.2, v0.2.3, v0.3, v0.3.1, v0.3.2, v0.3.3, v0.3.4, v0.3.5, v0.3.6, v0.4, v0.4.1, v0.4.2, v0.4.3, v0.4.4, v0.5, v0.6, v0.6.1, v0.6.1.1, v0.6.2, v1.0.0, v1.0.1, v1.0.2, v1.0.3, v1.0.4, v1.0.5, v1.0.6, v1.1, v1.2, v2.0, v2.0.1, v2.0.2, v2.0.3, v2.0.4, v3.0.0, v3.1.0, v3.2.0, v3.2.1, v3.2.2, v3.2.3, v3.2.4, v3.2.5, v3.2.6, v4.0, v4.0.1, v4.0.2, v4.0.3, v4.0.4, v4.0.41, v5.0.0, v5.1, v5.1.1, v5.1.2, v5.1.21, v6.0, v6.1].

You can also try re-running composer require with an explicit version constraint, e.g. "composer require dacastro4/laravel-gmail:*" to figure out if any version is installable, or "composer require dacastro4/laravel-gmail:^2.1" if you know which you need.

Installation failed, reverting ./composer.json and ./composer.lock to their original content.

And I expected this to happen: Package dacastro4/laravel-gmail to be installed.

[Seldaek]

You are on laravel 10 and dacastro4/laravel-gmail's latest version only supports illuminate/auth up to 9.x, so I am guessing this conflicts somewhere.

Find a more modern package to use? Or use standard SMTP with gmail that's also possible via symfony/mailer + https://packagist.org/packages/symfony/google-mailer for example, but gmail is really not made for bulk emails, you should rather use any other dedicated email sending service IMO.