我在 Symfony 5 中启动了一个新项目，并尝试安装 EasyAdmin，composer require easycorp/easyadmin-bundle但发现了一个问题。
作曲家日志：
./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 easycorp/easyadmin-bundle v3.1.3
- Conclusion: don't install easycorp/easyadmin-bundle v3.1.2
- Conclusion: don't install easycorp/easyadmin-bundle v3.1.1
- Conclusion: don't install easycorp/easyadmin-bundle v3.1.0
- Conclusion: don't install easycorp/easyadmin-bundle v3.0.2
- Conclusion: don't install easycorp/easyadmin-bundle …