EC-CUBE　4.2.2
レンタルサーバ　スターサーバー
サーバーOS Linux
MySQL 5.7.36
WEBサーバー Apache
PHP 8.2.28

構築テスト中で、簡単インストール後、再びクリーンインストールしたらプラグイン関係が全てインストールできません。

試したプラグイン
EC-CUBE Web APIプラグイン
商品や子カテゴリがあってもカテゴリ削除可能プラグイン for EC-CUBE4.2/4.3

エラーが下記です。
**************** Api42 ****************
<warning>A script named compile would override a Composer command and has been skipped</warning>
<warning>A script named auto-scripts would override a Composer command and has been skipped</warning>
<warning>A script named installer-scripts would override a Composer command and has been skipped</warning>
[9.1MiB/5.09s] ./composer.json has been updated
[11.0MiB/5.17s] Running composer update ec-cube/api42 --with-dependencies
[9.9MiB/5.20s] Loading composer repositories with package information
[10.8MiB/9.40s] <warning>Dependency ec-cube/plugin-installer is also a root requirement. Package has not been listed as an update argument, so keeping locked at old version. Use --with-all-dependencies (-W) to include root dependencies.</warning>
[11.1MiB/9.95s] <warning>Dependency doctrine/doctrine-bundle is also a root requirement. Package has not been listed as an update argument, so keeping locked at old version. Use --with-all-dependencies (-W) to include root dependencies.</warning>
[11.1MiB/9.95s] <warning>Dependency doctrine/orm is also a root requirement. Package has not been listed as an update argument, so keeping locked at old version. Use --with-all-dependencies (-W) to include root dependencies.</warning>
[11.1MiB/9.95s] <warning>Dependency symfony/event-dispatcher is also a root requirement. Package has not been listed as an update argument, so keeping locked at old version. Use --with-all-dependencies (-W) to include root dependencies.</warning>
[11.1MiB/9.95s] <warning>Dependency symfony/framework-bundle is also a root requirement. Package has not been listed as an update argument, so keeping locked at old version. Use --with-all-dependencies (-W) to include root dependencies.</warning>
[11.1MiB/9.95s] <warning>Dependency symfony/security-bundle is also a root requirement. Package has not been listed as an update argument, so keeping locked at old version. Use --with-all-dependencies (-W) to include root dependencies.</warning>
[11.1MiB/9.95s] <warning>Dependency psr/http-message is also a root requirement. Package has not been listed as an update argument, so keeping locked at old version. Use --with-all-dependencies (-W) to include root dependencies.</warning>
[11.4MiB/10.13s] <warning>Dependency symfony/http-foundation is also a root requirement. Package has not been listed as an update argument, so keeping locked at old version. Use --with-all-dependencies (-W) to include root dependencies.</warning>
[11.8MiB/10.59s] Updating dependencies
[13.5MiB/10.62s] Your requirements could not be resolved to an installable set of packages.
[13.5MiB/10.62s]
Problem 1
- laminas/laminas-code 4.7.1 requires php >=7.4, <8.2 -> your php version (8.2.28; overridden via config.platform, same as actual) does not satisfy that requirement.
- symfony/proxy-manager-bridge v5.4.6 requires friendsofphp/proxy-manager-lts ^1.0.2 -> satisfiable by friendsofphp/proxy-manager-lts[v1.0.13].
- friendsofphp/proxy-manager-lts v1.0.13 requires laminas/laminas-code ~3.4.1|^4.0 -> satisfiable by laminas/laminas-code[4.7.1].
- symfony/proxy-manager-bridge is locked to version v5.4.6 and an update of this package was not requested.

[13.5MiB/10.62s] <warning>Running update with --no-dev does not mean require-dev is ignored, it just means the packages will not be installed. If dev requirements are blocking the update you have to resolve those problems.</warning>
[11.8MiB/10.62s] You can also try re-running composer require with an explicit version constraint, e.g. "composer require ec-cube/Api42:*" to figure out if any version is installable, or "composer require ec-cube/Api42:^2.1" if you know which you need.
[11.8MiB/10.62s]
Installation failed, reverting ./composer.json and ./composer.lock to their original content.
[11.7MiB/10.62s] Memory usage: 11.74MiB (peak: 13.91MiB), time: 10.62s

{"success":false,"log":"\u003Cwarning\u003EA script named compile would override a Composer command and has been skipped\u003C\/warning\u003E\n\u003Cwarning\u003EA script named auto-scripts would override a Composer command and has been skipped\u003C\/warning\u003E\n\u003Cwarning\u003EA script named installer-scripts would override a Composer command and has been skipped\u003C\/warning\u003E\n[9.1MiB\/5.09s] .\/composer.json has been updated\n[11.0MiB\/5.17s] Running composer update ec-cube\/api42 --with-dependencies\n[9.9MiB\/5.20s] Loading composer repositories with package information\n[10.8MiB\/9.40s] \u003Cwarning\u003EDependency ec-cube\/plugin-installer is also a root requirement. Package has not been listed as an update argument, so keeping locked at old version. Use --with-all-dependencies (-W) to include root dependencies.\u003C\/warning\u003E\n[11.1MiB\/9.95s] \u003Cwarning\u003EDependency doctrine\/doctrine-bundle is also a root requirement. Package has not been listed as an update argument, so keeping locked at old version. Use --with-all-dependencies (-W) to include root dependencies.\u003C\/warning\u003E\n[11.1MiB\/9.95s] \u003Cwarning\u003EDependency doctrine\/orm is also a root requirement. Package has not been listed as an update argument, so keeping locked at old version. Use --with-all-dependencies (-W) to include root dependencies.\u003C\/warning\u003E\n[11.1MiB\/9.95s] \u003Cwarning\u003EDependency symfony\/event-dispatcher is also a root requirement. Package has not been listed as an update argument, so keeping locked at old version. Use --with-all-dependencies (-W) to include root dependencies.\u003C\/warning\u003E\n[11.1MiB\/9.95s] \u003Cwarning\u003EDependency symfony\/framework-bundle is also a root requirement. Package has not been listed as an update argument, so keeping locked at old version. Use --with-all-dependencies (-W) to include root dependencies.\u003C\/warning\u003E\n[11.1MiB\/9.95s] \u003Cwarning\u003EDependency symfony\/security-bundle is also a root requirement. Package has not been listed as an update argument, so keeping locked at old version. Use --with-all-dependencies (-W) to include root dependencies.\u003C\/warning\u003E\n[11.1MiB\/9.95s] \u003Cwarning\u003EDependency psr\/http-message is also a root requirement. Package has not been listed as an update argument, so keeping locked at old version. Use --with-all-dependencies (-W) to include root dependencies.\u003C\/warning\u003E\n[11.4MiB\/10.13s] \u003Cwarning\u003EDependency symfony\/http-foundation is also a root requirement. Package has not been listed as an update argument, so keeping locked at old version. Use --with-all-dependencies (-W) to include root dependencies.\u003C\/warning\u003E\n[11.8MiB\/10.59s] Updating dependencies\n[13.5MiB\/10.62s] Your requirements could not be resolved to an installable set of packages.\n[13.5MiB\/10.62s] \n Problem 1\n - laminas\/laminas-code 4.7.1 requires php \u003E=7.4, \u003C8.2 -\u003E your php version (8.2.28; overridden via config.platform, same as actual) does not satisfy that requirement.\n - symfony\/proxy-manager-bridge v5.4.6 requires friendsofphp\/proxy-manager-lts ^1.0.2 -\u003E satisfiable by friendsofphp\/proxy-manager-lts[v1.0.13].\n - friendsofphp\/proxy-manager-lts v1.0.13 requires laminas\/laminas-code ~3.4.1|^4.0 -\u003E satisfiable by laminas\/laminas-code[4.7.1].\n - symfony\/proxy-manager-bridge is locked to version v5.4.6 and an update of this package was not requested.\n\n[13.5MiB\/10.62s] \u003Cwarning\u003ERunning update with --no-dev does not mean require-dev is ignored, it just means the packages will not be installed. If dev requirements are blocking the update you have to resolve those problems.\u003C\/warning\u003E\n[11.8MiB\/10.62s] You can also try re-running composer require with an explicit version constraint, e.g. \u0022composer require ec-cube\/Api42:*\u0022 to figure out if any version is installable, or \u0022composer require ec-cube\/Api42:^2.1\u0022 if you know which you need.\n[11.8MiB\/10.62s] \nInstallation failed, reverting .\/composer.json and .\/composer.lock to their original content.\n[11.7MiB\/10.62s] Memory usage: 11.74MiB (peak: 13.91MiB), time: 10.62s\n"}

EC-CUBE 4.2 は、PHP 8.2 に対応していません。
PHPバージョンを7.4 〜 8.1にして試してみてください。

----------------
EC-CUBE 《プラチナ》ランクパートナー
トエビス株式会社　田中 宏典
EC-CUBEの機能やデザインのカスタマイズ承ります。

ご返信ありがとうございます。

試したところ、カテゴリ削除可能プラグインのみ有効化までできました。
Web APIプラグインは別の問題がありそうなので、4.3にバージョンアップして試してみます。