Memory error when generating order items

First time I try to install Shopware. All works well until I run the psh.phar install. On the step „Generating 60 items for order“ I get error:

Error: Allowed memory size of …

If I check the memory limit (php -i | grep memory_limit) it returns:
memory_limit => 2048M => 2048M

How can I solve this?

Mac OS with Mamp Pro 6

/ Magnus