Thumbnail of SVG files

[Prometee]

How to handle SVG file thumbnail ?
When trying to get thumbnail, this error occured :

An image could not be created from the given input

[1] Imagine\Exception\InvalidArgumentException: An image could not be created from the given input
at n/a
    in /..../vendor/imagine/Imagine/lib/Imagine/Gd/Imagine.php line 134

at Imagine\Gd\Imagine->load('<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<svg>
CONTENT OF SVG
</svg>
')
    in /..../vendor/imagine/Imagine/lib/Imagine/Gd/Imagine.php line 155

at Imagine\Gd\Imagine->read('Resource id #177')
    in /..../vendor/imagine/Imagine/lib/Imagine/Gd/Imagine.php line 117

at Imagine\Gd\Imagine->open('/..../app/../web/upload/file.svg')
    in /..../vendor/avalanche123/imagine-bundle/Avalanche/Bundle/ImagineBundle/Imagine/CacheManager.php line 88

at Avalanche\Bundle\ImagineBundle\Imagine\CacheManager->cacheImage('/app_dev.php', 'upload/file.svg', 'asset_thumb')
    in /..../vendor/avalanche123/imagine-bundle/Avalanche/Bundle/ImagineBundle/Controller/ImagineController.php line 61

at Avalanche\Bundle\ImagineBundle\Controller\ImagineController->filter('upload/file.svg', 'asset_thumb')
    in  line 

at call_user_func_array(array(object(ImagineController), 'filter'), array('upload/file.svg', 'asset_thumb'))
    in /..../app/bootstrap.php.cache line 2872

at Symfony\Component\HttpKernel\HttpKernel->handleRaw(object(Request), '1')
    in /..../app/bootstrap.php.cache line 2846

at Symfony\Component\HttpKernel\HttpKernel->handle(object(Request), '1', true)
    in /..../app/bootstrap.php.cache line 2975

at Symfony\Component\HttpKernel\DependencyInjection\ContainerAwareHttpKernel->handle(object(Request), '1', true)
    in /..../app/bootstrap.php.cache line 2255

at Symfony\Component\HttpKernel\Kernel->handle(object(Request))
    in /..../web/app_dev.php line 26