Composer 安装在生产环境中出现以下错误

Question

当我尝试在产品中安装 Composer 时，安装 Composer 时出现以下错误，有人可以建议我帮忙吗？谢谢。

 Problem 1
- Installation request for doctrine/annotations v1.5.0 -> satisfiable by doctrine/annotations[v1.5.0].
- doctrine/annotations v1.5.0 requires php ^7.1 -> your PHP version (7.0.22) does not satisfy that requirement.
  Problem 2
- Installation request for doctrine/cache v1.7.1 -> satisfiable by doctrine/cache[v1.7.1].
- doctrine/cache v1.7.1 requires php ~7.1 -> your PHP version (7.0.22) does not satisfy that requirement.
 Problem 3
- Installation request for doctrine/collections v1.5.0 -> satisfiable by doctrine/collections[v1.5.0].
- doctrine/collections v1.5.0 requires php ^7.1 -> your PHP version (7.0.22) does not satisfy that requirement.
 Problem 4
- Installation request for doctrine/common v2.8.1 -> satisfiable by doctrine/common[v2.8.1].
- doctrine/common v2.8.1 requires php ~7.1 -> your PHP version (7.0.22) does not satisfy that requirement.
 Problem 5
- Installation request for doctrine/dbal v2.6.2 -> satisfiable by doctrine/dbal[v2.6.2].
- doctrine/dbal v2.6.2 requires php ^7.1 -> your PHP version (7.0.22) does not satisfy that requirement.
Problem 6
- Installation request for doctrine/instantiator 1.1.0 -> satisfiable by doctrine/instantiator[1.1.0].
- doctrine/instantiator 1.1.0 requires php ^7.1 -> your PHP version (7.0.22) does not satisfy that requirement.
 Problem 7
- doctrine/instantiator 1.1.0 requires php ^7.1 -> your PHP version (7.0.22) does not satisfy that requirement.
- phpunit/phpunit-mock-objects 3.4.4 requires doctrine/instantiator ^1.0.2 -> satisfiable by doctrine/instantiator[1.1.0].
- Installation request for phpunit/phpunit-mock-objects 3.4.4 -> satisfiable by phpunit/phpunit-mock-objects[3.4.4].

Answer 1

这是比编辑composer.json更简单的解决方案

--ignore-platform-reqs 例如，将 switch 与 Composer 命令一起使用

composer update --ignore-platform-reqs