I'm trying to install Sonata Sandbox on my Mac with PHP5.5 with the following command line :
COMPOSER_PROCESS_TIMEOUT=600 php composer.phar create-project sonata-project/sandbox:dev-2.3-develop
All works great until I load fixtures, I get the following error with LoadProductData :
loading [12] Sonata\Bundle\DemoBundle\DataFixtures\ORM\LoadProductData
[Imagine\Exception\InvalidArgumentException]
An image could not be created from the given input
Can anyone now how to fix this error ?