can't install via docker

[handrei]

hello guys,
i'm trying to install shopware, but it fails on ./psh.phar docker:start

the error is
error: 'COPY' does not exist

usage: /usr/local/bin/docker-php-ext-enable [options] module-name [module-name ...]
   ie: /usr/local/bin/docker-php-ext-enable gd mysqli
       /usr/local/bin/docker-php-ext-enable pdo pdo_mysql
       /usr/local/bin/docker-php-ext-enable --ini-name 0-apc.ini apcu apc

[handrei]

i figured it out