当我尝试orm-fixtures在 Symfony 5.1 中安装时遇到问题：
$ composer require orm-fixtures --dev
Using version ^3.3 for doctrine/doctrine-fixtures-bundle
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
Restricting packages listed in "symfony/symfony" to "5.1.*"
Your requirements could not be resolved to an installable set of packages.
Problem 1
- Conclusion: don't install doctrine/doctrine-fixtures-bundle 3.3.1
- Conclusion: remove doctrine/cache 1.10.2
- Conclusion: don't install doctrine/cache 1.10.2
- doctrine/common 2.2.1 conflicts with doctrine/cache[1.10.2].
- doctrine/common 2.2.2 conflicts with …