我正在尝试安装Mercure（https://symfony.com/doc/current/mercure.html）。我收到此错误。
这是我使用的命令：
composer require symfony/mercure
我什至尝试过：
php -d memory_limit=-1 composer.phar require symfony/mercure，我仍然遇到相同的错误。
错误消息：
$ composer require symfony/mercure
PHP Warning: Module 'openssl' already loaded in Unknown on line 0
Warning: Module 'openssl' already loaded in Unknown on line 0
Using version ^0.1.0 for symfony/mercure
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
VirtualAlloc() failed: [0x00000008] Not enough memory resources are available to process this command.
VirtualFree() failed: [0x000001e7] Attempt to access invalid address.
VirtualAlloc() failed: [0x00000008] Not enough memory resources are available to process this command.
VirtualFree() failed: [0x000001e7] Attempt to access invalid address.
PHP Fatal error: Out of memory (allocated 1570766848) (tried to allocate 4096 bytes) in phar://C:/ProgramData/ComposerSetup/bin/composer.phar/src/Composer/DependencyResolver/Solver.php on line 223
Fatal error: Out of memory (allocated 1570766848) (tried to allocate 4096 bytes) in phar://C:/ProgramData/ComposerSetup/bin/composer.phar/src/Composer/DependencyResolver/Solver.php on line 223