docker compose`/docker 입구점.sh:exec:line 24:require:을(를) 찾을 수 없습니다.

docker-compose run composer require phpunit/phpunit

/docker-entrypoint.sh: exec: line 24: require: not found

$ rm ./composer.json 

docker-compose run composer require phpunit/phpunit

$ docker-compose run composer --help


  [Seld\JsonLint\ParsingException]                                        
  "./composer.json" does not contain valid JSON                           
  Parse error on line 1:                                                  

  ^                                                                       
  Expected one of: 'STRING', 'NUMBER', 'NULL', 'TRUE', 'FALSE', '{', '['  

$ cat ./composer.json
$