phpunit 檢查後，發現缺少 packages. - daniel-qa/Azure-Kubernetes-Service GitHub Wiki

Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - maatwebsite/excel[3.1.28, ..., 3.1.30] require phpoffice/phpspreadsheet 1.16.* -> satisfiable by phpoffice/phpspreadsheet[1.16.0].
    - maatwebsite/excel[3.1.31, ..., 3.1.x-dev] require phpoffice/phpspreadsheet ^1.18 -> satisfiable by phpoffice/phpspreadsheet[1.18.0, ..., 1.24.1].
    - maatwebsite/excel 3.1.27 requires phpoffice/phpspreadsheet ^1.16 -> satisfiable by phpoffice/phpspreadsheet[1.16.0, ..., 1.24.1].
    - maatwebsite/excel 3.1.26 requires phpoffice/phpspreadsheet ^1.15 -> satisfiable by phpoffice/phpspreadsheet[1.15.0, ..., 1.24.1].
    - maatwebsite/excel[3.1.20, ..., 3.1.25] require phpoffice/phpspreadsheet ^1.14 -> satisfiable by phpoffice/phpspreadsheet[1.14.0, ..., 1.24.1].
    - maatwebsite/excel[3.1.18, ..., 3.1.19] require phpoffice/phpspreadsheet ^1.10 -> satisfiable by phpoffice/phpspreadsheet[1.10.0, ..., 1.24.1].
    - maatwebsite/excel[3.1.7, ..., 3.1.17] require phpoffice/phpspreadsheet ^1.6 -> satisfiable by phpoffice/phpspreadsheet[1.6.0, ..., 1.24.1].
    - maatwebsite/excel[3.1.0, ..., 3.1.6] require phpoffice/phpspreadsheet ^1.4 -> satisfiable by phpoffice/phpspreadsheet[1.4.0, ..., 1.24.1].
    - phpoffice/phpspreadsheet[1.4.0, ..., 1.24.1] require ext-gd * -> it is missing from your system. Install or enable PHP's gd extension.
    - Root composer.json requires maatwebsite/excel ^3.1 -> satisfiable by maatwebsite/excel[3.1.0, ..., 3.1.x-dev].

To enable extensions, verify that they are enabled in your .ini files:
    - /usr/local/etc/php/conf.d/docker-php-ext-bcmath.ini
    - /usr/local/etc/php/conf.d/docker-php-ext-pdo_mysql.ini
    - /usr/local/etc/php/conf.d/docker-php-ext-redis.ini
    - /usr/local/etc/php/conf.d/docker-php-ext-sodium.ini
You can also run `php --ini` in a terminal to see which files are used by PHP in CLI mode.
Alternatively, you can run Composer with `--ignore-platform-req=ext-gd` to temporarily ignore these required extensions.

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

Run php --ini : in a terminal to see which files are used by PHP in CLI mode.