Can't install package with composer

[vldmr-k]

HI
I was trying to install php-etl for clear, follow this instruction
https://php-etl.github.io/documentation/getting-started/installation/

But have next problem

composer require php-etl/satellite:'*'
./composer.json has been updated
Running composer update php-etl/satellite
Loading composer repositories with package information
Updating dependencies
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - Root composer.json requires php-etl/satellite * -> satisfiable by php-etl/satellite[v0.5.0, ..., v0.7.8].
    - composer/composer 1.10.27 requires symfony/process ^2.7 || ^3.0 || ^4.0 || ^5.0 -> satisfiable by symfony/process[v5.4.46, v5.4.47].
    - composer/composer 2.2.26 requires psr/log ^1.0 || ^2.0 -> satisfiable by psr/log[1.0.0, ..., 1.1.4, 2.0.0].
    - composer/composer 2.9.3 requires react/promise ^3.3 -> satisfiable by react/promise[v3.3.0].
    - php-etl/satellite[v0.5.0, ..., v0.5.1] require composer/composer * -> satisfiable by composer/composer[1.10.27, 2.2.26, 2.9.3].
    - php-etl/satellite[v0.5.0, ..., v0.5.1] require psr/log ^3.0 -> satisfiable by psr/log[3.0.0, 3.0.1, 3.0.2].
    - php-etl/satellite[v0.5.0, ..., v0.5.1] require react/promise ^2.9 -> satisfiable by react/promise[v2.9.0, v2.10.0, v2.11.0].
    - php-etl/satellite[v0.5.0, ..., v0.5.1] require symfony/process ^6.0 -> satisfiable by symfony/process[v6.4.14, ..., v6.4.31].
    - php-etl/satellite[v0.7.0, ..., v0.7.8] require react/child-process ^0.7 -> found react/child-process[0.7.x-dev] but it does not match your minimum-stability.
    - Conclusion: don't install php-etl/satellite v0.6.12 (conflict analysis result)
    - Conclusion: don't install php-etl/satellite v0.6.13 (conflict analysis result)
    - You can only install one version of a package, so only one of these can be installed: psr/log[1.0.0, ..., 1.1.4, 2.0.0, 3.0.0, 3.0.1, 3.0.2].
    - You can only install one version of a package, so only one of these can be installed: react/promise[v1.0.0, ..., v1.3.0, v2.0.0, ..., v2.11.0, v3.0.0, v3.1.0, v3.2.0, v3.3.0].
    - You can only install one version of a package, so only one of these can be installed: symfony/process[v5.4.46, v5.4.47, v6.4.14, ..., v6.4.31, v7.1.7, ..., v7.4.3, v8.0.0, v8.0.3].

Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.

{
    "name": "app/etl",
    "autoload": {
        "psr-4": {
            "App\\Etl\\": "src/"
        }
    },
    "require": {
    },
    "config": {
        "bin-dir": "bin"
    },
    "scripts": {
        "post-install-cmd": [
            "Kiboko\\Component\\Satellite\\ComposerScripts::postInstall"
        ],
        "post-update-cmd": [
            "Kiboko\\Component\\Satellite\\ComposerScripts::postUpdate"
        ]
    }
}

php -v
PHP 8.3.29 (cli) (built: Jan  9 2026 22:58:36) (NTS)
Copyright (c) The PHP Group
Zend Engine v4.3.29, Copyright (c) Zend Technologies
    with Zend OPcache v8.3.29, Copyright (c), by Zend Technologies
    with Xdebug v3.4.0, Copyright (c) 2002-2024, by Derick Rethans

[gplanchat]

Hello Vladimir,

Thank you for posting your issue.

You may need to change the minimum-stability to dev in your composer.json file and relaunch the composer install command :

{
    "name": "app/etl",
    "autoload": {
        "psr-4": {
            "App\\Etl\\": "src/"
        }
    },
    "minimum-stability": "dev",
    "prefer-stable": true,
    "require": {
    },
    "config": {
        "bin-dir": "bin"
    },
    "scripts": {
        "post-install-cmd": [
            "Kiboko\\Component\\Satellite\\ComposerScripts::postInstall"
        ],
        "post-update-cmd": [
            "Kiboko\\Component\\Satellite\\ComposerScripts::postUpdate"
        ]
    }
}

I will update the documentation with your feedback.