我目前正在使用symfony 2.4.10，我想安装Doctrine Fixtures Bundle，但是当我使用作曲家时require --dev doctrine/doctrine-fixtures-bundle要安装它，我得到这个：
Your requirements could not be resolved to an installable set of packages.
Problem 1
- symfony/doctrine-bridge v4.0.3 requires php ^7.1.3 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v4.0.2 requires php ^7.1.3 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v4.0.1 requires php ^7.1.3 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v4.0.0 requires php ^7.1.3 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.4.3 requires php ^5.5.9|>=7.0.8 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.4.2 requires php ^5.5.9|>=7.0.8 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.4.1 requires php ^5.5.9|>=7.0.8 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.4.0 requires php ^5.5.9|>=7.0.8 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.3.9 requires php ^5.5.9|>=7.0.8 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.3.8 requires php ^5.5.9|>=7.0.8 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.3.7 requires php ^5.5.9|>=7.0.8 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.3.6 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.3.5 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.3.4 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.3.3 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.3.2 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.3.15 requires php ^5.5.9|>=7.0.8 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.3.14 requires php ^5.5.9|>=7.0.8 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.3.13 requires php ^5.5.9|>=7.0.8 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.3.12 requires php ^5.5.9|>=7.0.8 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.3.11 requires php ^5.5.9|>=7.0.8 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.3.10 requires php ^5.5.9|>=7.0.8 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.3.1 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.3.0 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.2.9 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.2.8 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.2.7 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.2.6 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.2.5 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.2.4 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.2.3 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.2.2 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.2.14 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.2.13 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.2.12 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.2.11 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.2.10 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.2.1 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.2.0 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.1.9 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.1.8 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.1.7 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.1.6 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.1.5 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.1.4 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.1.3 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.1.2 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.1.10 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.1.1 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.1.0 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.0.9 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.0.8 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.0.7 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.0.6 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.0.5 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.0.4 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.0.3 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.0.2 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.0.1 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- symfony/doctrine-bridge v3.0.0 requires php >=5.5.9 -> your PHP version (5.4.3) does not satisfy that requirement.
- Conclusion: remove symfony/symfony v2.4.10
- Conclusion: don't install symfony/symfony v2.4.10
- doctrine/doctrine-fixtures-bundle v2.4.0 requires symfony/doctrine-bridge ~2.7|~3.0|~4.0 -> satisfiable by symfony/doctrine-bridge[v2.7.0, v2.7.1, v2.7.10, v2.7.11, v2.7.12, v2.7.13, v2.7.14, v2.7.15, v2.7.16, v2.7.17, v2.7.18, v2.7.19, v2.7.2, v2.7.20, v2.7.21, v2.7.22, v2.7.23, v2.7.24, v2.7.25, v2.7.26, v2.7.27, v2.7.28, v2.7.29, v2.7.3, v2.7.30, v2.7.31, v2.7.32, v2.7.33, v2.7.34, v2.7.35, v2.7.36, v2.7.37, v2.7.38, v2.7.39, v2.7.4, v2.7.40, v2.7.5, v2.7.6, v2.7.7, v2.7.8, v2.7.9, v2.8.0, v2.8.1, v2.8.10, v2.8.11, v2.8.12, v2.8.13, v2.8.14, v2.8.15, v2.8.16, v2.8.17, v2.8.18, v2.8.19, v2.8.2, v2.8.20, v2.8.21, v2.8.22, v2.8.23, v2.8.24, v2.8.25, v2.8.26, v2.8.27, v2.8.28, v2.8.29, v2.8.3, v2.8.30, v2.8.31, v2.8.32, v2.8.33, v2.8.4, v2.8.5, v2.8.6, v2.8.7, v2.8.8, v2.8.9, v3.0.0, v3.0.1, v3.0.2, v3.0.3, v3.0.4, v3.0.5, v3.0.6, v3.0.7, v3.0.8, v3.0.9, v3.1.0, v3.1.1, v3.1.10, v3.1.2, v3.1.3, v3.1.4, v3.1.5, v3.1.6, v3.1.7, v3.1.8, v3.1.9, v3.2.0, v3.2.1, v3.2.10, v3.2.11, v3.2.12, v3.2.13, v3.2.14, v3.2.2, v3.2.3, v3.2.4, v3.2.5, v3.2.6, v3.2.7, v3.2.8, v3.2.9, v3.3.0, v3.3.1, v3.3.10, v3.3.11, v3.3.12, v3.3.13, v3.3.14, v3.3.15, v3.3.2, v3.3.3, v3.3.4, v3.3.5, v3.3.6, v3.3.7, v3.3.8, v3.3.9, v3.4.0, v3.4.1, v3.4.2, v3.4.3, v4.0.0, v4.0.1, v4.0.2, v4.0.3].
- doctrine/doctrine-fixtures-bundle v2.4.1 requires symfony/doctrine-bridge ~2.7|~3.0|~4.0 -> satisfiable by symfony/doctrine-bridge[v2.7.0, v2.7.1, v2.7.10, v2.7.11, v2.7.12, v2.7.13, v2.7.14, v2.7.15, v2.7.16, v2.7.17, v2.7.18, v2.7.19, v2.7.2, v2.7.20, v2.7.21, v2.7.22, v2.7.23, v2.7.24, v2.7.25, v2.7.26, v2.7.27, v2.7.28, v2.7.29, v2.7.3, v2.7.30, v2.7.31, v2.7.32, v2.7.33, v2.7.34, v2.7.35, v2.7.36, v2.7.37, v2.7.38, v2.7.39, v2.7.4, v2.7.40, v2.7.5, v2.7.6, v2.7.7, v2.7.8, v2.7.9, v2.8.0, v2.8.1, v2.8.10, v2.8.11, v2.8.12, v2.8.13, v2.8.14, v2.8.15, v2.8.16, v2.8.17, v2.8.18, v2.8.19, v2.8.2, v2.8.20, v2.8.21, v2.8.22, v2.8.23, v2.8.24, v2.8.25, v2.8.26, v2.8.27, v2.8.28, v2.8.29, v2.8.3, v2.8.30, v2.8.31, v2.8.32, v2.8.33, v2.8.4, v2.8.5, v2.8.6, v2.8.7, v2.8.8, v2.8.9, v3.0.0, v3.0.1, v3.0.2, v3.0.3, v3.0.4, v3.0.5, v3.0.6, v3.0.7, v3.0.8, v3.0.9, v3.1.0, v3.1.1, v3.1.10, v3.1.2, v3.1.3, v3.1.4, v3.1.5, v3.1.6, v3.1.7, v3.1.8, v3.1.9, v3.2.0, v3.2.1, v3.2.10, v3.2.11, v3.2.12, v3.2.13, v3.2.14, v3.2.2, v3.2.3, v3.2.4, v3.2.5, v3.2.6, v3.2.7, v3.2.8, v3.2.9, v3.3.0, v3.3.1, v3.3.10, v3.3.11, v3.3.12, v3.3.13, v3.3.14, v3.3.15, v3.3.2, v3.3.3, v3.3.4, v3.3.5, v3.3.6, v3.3.7, v3.3.8, v3.3.9, v3.4.0, v3.4.1, v3.4.2, v3.4.3, v4.0.0, v4.0.1, v4.0.2, v4.0.3].
- don't install symfony/doctrine-bridge v2.7.0|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.1|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.10|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.11|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.12|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.13|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.14|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.15|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.16|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.17|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.18|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.19|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.2|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.20|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.21|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.22|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.23|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.24|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.25|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.26|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.27|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.28|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.29|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.3|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.30|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.31|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.32|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.33|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.34|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.35|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.36|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.37|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.38|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.39|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.4|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.40|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.5|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.6|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.7|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.8|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.7.9|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.0|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.1|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.10|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.11|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.12|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.13|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.14|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.15|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.16|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.17|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.18|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.19|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.2|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.20|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.21|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.22|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.23|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.24|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.25|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.26|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.27|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.28|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.29|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.3|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.30|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.31|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.32|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.33|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.4|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.5|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.6|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.7|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.8|don't install symfony/symfony v2.4.10
- don't install symfony/doctrine-bridge v2.8.9|don't install symfony/symfony v2.4.10
- Installation request for symfony/symfony (locked at v2.4.10, required as 2.4.*) -> satisfiable by symfony/symfony[v2.4.10].
- Installation request for doctrine/doctrine-fixtures-bundle ^2.4 -> satisfiable by doctrine/doctrine-fixtures-bundle[v2.4.0, v2.4.1].
Installation failed, reverting ./composer.json to its original content.
好吧，我知道也许我应该使用其他版本的PHP，但现在我到了无法回来的地步，请帮助我，我不知道是否有其他版本的Doctrine Fixtures Bundle适用于Symfony 2.4.10注意：我正在使用PHP 5.4
您需要将PHP版本更新到最低php 7.1.3
您可以在第一行看到错误：
- symfony/doctrine-bridge v4.0.3 requires php ^7.1.3 -> your PHP version (5.4.3) does not satisfy that requirement.
修复此问题，请重试