composer.phar installでのエラー

自分用メモ

新環境にて、EC-Eubeの2系を構築してた所のエラーです。
ググってもあまり出てこなかったので、備忘録として。

$ php composer.phar install --no-dev --no-interaction -o
Installing dependencies from lock file
Verifying lock file contents can be installed on current platform.
Your lock file does not contain a compatible set of packages. Please run composer update.

  Problem 1
    - Root composer.json requires PHP extension ext-gd * but it is missing from your system. Install or enable PHP's gd extension.
  Problem 2
    - pear/xml_serializer is locked to version v0.22.0 and an update of this package was not requested.
    - pear/xml_serializer v0.22.0 requires ext-xml * -> it is missing from your system. Install or enable PHP's xml extension.
  Problem 3
    - setasign/fpdf is locked to version 1.8.5 and an update of this package was not requested.
    - setasign/fpdf 1.8.5 requires ext-gd * -> it is missing from your system. Install or enable PHP's gd extension.

To enable extensions, verify that they are enabled in your .ini files:

解決策

ext-gdとext-xmlをインストールすればいいだけ。

apt install ext-gd ext-xml