我已经在本地成功安装了这个包composer require spatie/laravel-image-optimizer，但是当我尝试在实时服务器上安装时出现此错误
no@zz607:/var/www/html$ composer require spatie/laravel-image-
optimizer
Using version ^1.4 for spatie/laravel-image-optimizer
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
mmap() failed: [12] Cannot allocate memory
mmap() failed: [12] Cannot allocate memory
mmap() failed: [12] Cannot allocate memory
PHP Fatal error: Out of memory (allocated 544395264) (tried to
allocate 20480 bytes) in
/usr/share/php/Composer/Repository/ComposerRepository.php on line 321
Fatal error: Out of memory (allocated 544395264) (tried to allocate
20480 bytes) in
/usr/share/php/Composer/Repository/ComposerRepository.php on …