在新PC上运行Symfony 2.8项目时遇到问题。我在其他计算机上运行它。
在composer install
我得到以下输出：
Loading composer repositories with package information
Updating dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.
Problem 1
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.0
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.1
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.10
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.11
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.12
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.13
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.14
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.15
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.16
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.17
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.18
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.19
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.2
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.20
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.21
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.22
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.23
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.24
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.25
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.26
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.27
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.28
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.29
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.3
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.30
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.31
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.32
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.33
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.34
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.35
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.36
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.37
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.38
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.39
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.4
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.40
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.41
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.42
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.43
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.44
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.45
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.46
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.47
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.48
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.49
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.5
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.6
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.7
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.8
- don't install symfony/event-dispatcher v3.2.6|don't install symfony/symfony v2.8.9
- Installation request for symfony/event-dispatcher v3.2.6 -> satisfiable by symfony/event-dispatcher[v3.2.6].
- Installation request for symfony/symfony 2.8.* -> satisfiable by symfony/symfony[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, v2.8.34, v2.8.35, v2.8.36, v2.8.37, v2.8.38, v2.8.39, v2.8.4, v2.8.40, v2.8.41, v2.8.42, v2.8.43, v2.8.44, v2.8.45, v2.8.46, v2.8.47, v2.8.48, v2.8.49, v2.8.5, v2.8.6, v2.8.7, v2.8.8, v2.8.9].
这是我的composer.json内容：
"require": {
"php": ">=5.6",
"symfony/symfony": "2.8.*",
"doctrine/orm": "^2.4.8",
"doctrine/doctrine-bundle": "~1.4",
"symfony/swiftmailer-bundle": "~2.3",
"sensio/distribution-bundle": "~5.0",
"sensio/framework-extra-bundle": "^3.0.2",
"incenteev/composer-parameter-handler": "~2.0",
"ruudy/metronic-bundle": "@dev",
"twig/extensions": "^1.3",
"spraed/pdf-generator-bundle": "v1.3",
"doctrine/doctrine-migrations-bundle": "^1.0",
"knplabs/knp-snappy-bundle": "dev-master",
"h4cc/wkhtmltopdf-amd64": "0.12.x",
"h4cc/wkhtmltoimage-amd64": "0.12.x",
"psliwa/pdf-bundle": "^1.0",
"respect/validation": "^1.1",
"symfony/monolog-bundle": "^3.0.2",
"symfony/assetic-bundle": "^2.8",
"friendsofsymfony/jsrouting-bundle": "^1.6",
"ci/restclientbundle": "^2.0",
"winzou/state-machine-bundle": "^0.3.0",
"symfony/event-dispatcher": "v3.2.6",
"jms/serializer-bundle": "^1.2",
"friendsofsymfony/user-bundle": "~2.0",
"liuggio/excelbundle": "^2.1",
"hipaway-travel/mandrill-bundle": "^1.0",
"knplabs/knp-paginator-bundle": "^2.5",
"php-amqplib/rabbitmq-bundle": "^1.13",
"knpuniversity/oauth2-client-bundle": "^1.10",
"friendsofsymfony/rest-bundle": "^2.3",
"jms/serializer": "^1.10",
"firebase/php-jwt": "^5.0"
},
我认为存在一些冲突，但是如何找出导致此问题的软件包？
我也很好奇为什么这个项目可以在其他环境下运行而没有任何问题？
答案 0 :(得分：2)
几个小时后，我设法找到了答案。不得不将symfony/event-dispatcher的版本更改为2。无论如何，我仍然不知道为什么在其他环境下也能使用。