$ cd /作業ディレクトリ/
$ composer install openpsa/universalfeedcreator
Invalid argument openpsa/universalfeedcreator. Use "composer require openpsa/universalfeedcreator" instead to add packages to your composer.json.
怒られちゃいました。
2. require コマンドを使ってみる
言われたとおりにやってみます。
$ cd /作業ディレクトリ/
$ composer require openpsa/universalfeedcreator
Using version ^1.8 for openpsa/universalfeedcreator
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
Package operations: 1 install, 0 updates, 0 removals
- Installing openpsa/universalfeedcreator (v1.8.3): Downloading (100%)
Writing lock file
Generating autoload files