安装Laravel的代客时由于冲突安装失败

Question

我对Laravel的代客有一些问题，所以我试图卸载并重新安装。重新安装时，当我键入命令作曲家全局需要laravel/valet时，我得到了这个极其冗长的错误

Your requirements could not be resolved to an installable set of packages.

Problem 1
- Conclusion: don't install symfony/process v3.4.1
- Conclusion: don't install laravel/valet v2.0.6
- Conclusion: don't install laravel/valet v2.0.5
- Conclusion: don't install laravel/valet v2.0.4
- Conclusion: don't install laravel/valet v2.0.3
- Conclusion: don't install laravel/valet v2.0.1
- Conclusion: don't install symfony/process v3.4.0
- Conclusion: remove symfony/console v4.0.1
- Conclusion: don't install symfony/console v4.0.1
- symfony/process v2.7.0 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.1 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.10 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.11 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.12 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.13 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.14 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.15 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.16 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.17 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.18 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.19 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.2 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.20 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.21 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.22 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.23 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.24 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.25 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.26 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.27 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.28 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.29 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.3 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.30 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.31 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.32 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.33 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.34 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.35 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.36 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.37 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.38 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.39 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.4 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.5 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.6 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.7 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.8 conflicts with symfony/console[v4.0.1].
- symfony/process v2.7.9 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.0 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.1 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.10 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.11 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.12 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.13 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.14 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.15 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.16 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.17 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.18 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.19 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.2 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.20 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.21 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.22 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.23 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.24 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.25 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.26 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.27 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.28 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.29 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.3 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.30 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.31 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.32 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.4 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.5 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.6 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.7 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.8 conflicts with symfony/console[v4.0.1].
- symfony/process v2.8.9 conflicts with symfony/console[v4.0.1].
- symfony/process v3.0.0 conflicts with symfony/console[v4.0.1].
- symfony/process v3.0.1 conflicts with symfony/console[v4.0.1].
- symfony/process v3.0.2 conflicts with symfony/console[v4.0.1].
- symfony/process v3.0.3 conflicts with symfony/console[v4.0.1].
- symfony/process v3.0.4 conflicts with symfony/console[v4.0.1].
- symfony/process v3.0.5 conflicts with symfony/console[v4.0.1].
- symfony/process v3.0.6 conflicts with symfony/console[v4.0.1].
- symfony/process v3.0.7 conflicts with symfony/console[v4.0.1].
- symfony/process v3.0.8 conflicts with symfony/console[v4.0.1].
- symfony/process v3.0.9 conflicts with symfony/console[v4.0.1].
- symfony/process v3.1.0 conflicts with symfony/console[v4.0.1].
- symfony/process v3.1.1 conflicts with symfony/console[v4.0.1].
- symfony/process v3.1.10 conflicts with symfony/console[v4.0.1].
- symfony/process v3.1.2 conflicts with symfony/console[v4.0.1].
- symfony/process v3.1.3 conflicts with symfony/console[v4.0.1].
- symfony/process v3.1.4 conflicts with symfony/console[v4.0.1].
- symfony/process v3.1.5 conflicts with symfony/console[v4.0.1].
- symfony/process v3.1.6 conflicts with symfony/console[v4.0.1].
- symfony/process v3.1.7 conflicts with symfony/console[v4.0.1].
- symfony/process v3.1.8 conflicts with symfony/console[v4.0.1].
- symfony/process v3.1.9 conflicts with symfony/console[v4.0.1].
- symfony/process v3.2.0 conflicts with symfony/console[v4.0.1].
- symfony/process v3.2.1 conflicts with symfony/console[v4.0.1].
- symfony/process v3.2.10 conflicts with symfony/console[v4.0.1].
- symfony/process v3.2.11 conflicts with symfony/console[v4.0.1].
- symfony/process v3.2.12 conflicts with symfony/console[v4.0.1].
- symfony/process v3.2.13 conflicts with symfony/console[v4.0.1].
- symfony/process v3.2.14 conflicts with symfony/console[v4.0.1].
- symfony/process v3.2.2 conflicts with symfony/console[v4.0.1].
- symfony/process v3.2.3 conflicts with symfony/console[v4.0.1].
- symfony/process v3.2.4 conflicts with symfony/console[v4.0.1].
- symfony/process v3.2.5 conflicts with symfony/console[v4.0.1].
- symfony/process v3.2.6 conflicts with symfony/console[v4.0.1].
- symfony/process v3.2.7 conflicts with symfony/console[v4.0.1].
- symfony/process v3.2.8 conflicts with symfony/console[v4.0.1].
- symfony/process v3.2.9 conflicts with symfony/console[v4.0.1].
- Conclusion: remove symfony/process v4.0.1|install symfony/process v2.7.0|install symfony/process v2.7.1|install symfony/process v2.7.10|install symfony/process v2.7.11|install symfony/process v2.7.12|install symfony/process v2.7.13|install symfony/process v2.7.14|install symfony/process v2.7.15|install symfony/process v2.7.16|install symfony/process v2.7.17|install symfony/process v2.7.18|install symfony/process v2.7.19|install symfony/process v2.7.2|install symfony/process v2.7.20|install symfony/process v2.7.21|install symfony/process v2.7.22|install symfony/process v2.7.23|install symfony/process v2.7.24|install symfony/process v2.7.25|install symfony/process v2.7.26|install symfony/process v2.7.27|install symfony/process v2.7.28|install symfony/process v2.7.29|install symfony/process v2.7.3|install symfony/process v2.7.30|install symfony/process v2.7.31|install symfony/process v2.7.32|install symfony/process v2.7.33|install symfony/process v2.7.34|install symfony/process v2.7.35|install symfony/process v2.7.36|install symfony/process v2.7.37|install symfony/process v2.7.38|install symfony/process v2.7.39|install symfony/process v2.7.4|install symfony/process v2.7.5|install symfony/process v2.7.6|install symfony/process v2.7.7|install symfony/process v2.7.8|install symfony/process v2.7.9|install symfony/process v2.8.0|install symfony/process v2.8.1|install symfony/process v2.8.10|install symfony/process v2.8.11|install symfony/process v2.8.12|install symfony/process v2.8.13|install symfony/process v2.8.14|install symfony/process v2.8.15|install symfony/process v2.8.16|install symfony/process v2.8.17|install symfony/process v2.8.18|install symfony/process v2.8.19|install symfony/process v2.8.2|install symfony/process v2.8.20|install symfony/process v2.8.21|install symfony/process v2.8.22|install symfony/process v2.8.23|install symfony/process v2.8.24|install symfony/process v2.8.25|install symfony/process v2.8.26|install symfony/process v2.8.27|install symfony/process v2.8.28|install symfony/process v2.8.29|install symfony/process v2.8.3|install symfony/process v2.8.30|install symfony/process v2.8.31|install symfony/process v2.8.32|install symfony/process v2.8.4|install symfony/process v2.8.5|install symfony/process v2.8.6|install symfony/process v2.8.7|install symfony/process v2.8.8|install symfony/process v2.8.9|install symfony/process v3.0.0|install symfony/process v3.0.1|install symfony/process v3.0.2|install symfony/process v3.0.3|install symfony/process v3.0.4|install symfony/process v3.0.5|install symfony/process v3.0.6|install symfony/process v3.0.7|install symfony/process v3.0.8|install symfony/process v3.0.9|install symfony/process v3.1.0|install symfony/process v3.1.1|install symfony/process v3.1.10|install symfony/process v3.1.2|install symfony/process v3.1.3|install symfony/process v3.1.4|install symfony/process v3.1.5|install symfony/process v3.1.6|install symfony/process v3.1.7|install symfony/process v3.1.8|install symfony/process v3.1.9|install symfony/process v3.2.0|install symfony/process v3.2.1|install symfony/process v3.2.10|install symfony/process v3.2.11|install symfony/process v3.2.12|install symfony/process v3.2.13|install symfony/process v3.2.14|install symfony/process v3.2.2|install symfony/process v3.2.3|install symfony/process v3.2.4|install symfony/process v3.2.5|install symfony/process v3.2.6|install symfony/process v3.2.7|install symfony/process v3.2.8|install symfony/process v3.2.9
- Conclusion: don't install symfony/process v3.3.14|keep symfony/process v4.0.1
- Installation request for symfony/console (locked at v4.0.1, required as ^4.0) -> satisfiable by symfony/console[v4.0.1].
- Installation request for laravel/valet ^2.0 -> satisfiable by laravel/valet[v2.0.0, v2.0.1, v2.0.3, v2.0.4, v2.0.5, v2.0.6].
- Conclusion: don't install symfony/process v4.0.1|install symfony/process v2.7.0|install symfony/process v2.7.1|install symfony/process v2.7.10|install symfony/process v2.7.11|install symfony/process v2.7.12|install symfony/process v2.7.13|install symfony/process v2.7.14|install symfony/process v2.7.15|install symfony/process v2.7.16|install symfony/process v2.7.17|install symfony/process v2.7.18|install symfony/process v2.7.19|install symfony/process v2.7.2|install symfony/process v2.7.20|install symfony/process v2.7.21|install symfony/process v2.7.22|install symfony/process v2.7.23|install symfony/process v2.7.24|install symfony/process v2.7.25|install symfony/process v2.7.26|install symfony/process v2.7.27|install symfony/process v2.7.28|install symfony/process v2.7.29|install symfony/process v2.7.3|install symfony/process v2.7.30|install symfony/process v2.7.31|install symfony/process v2.7.32|install symfony/process v2.7.33|install symfony/process v2.7.34|install symfony/process v2.7.35|install symfony/process v2.7.36|install symfony/process v2.7.37|install symfony/process v2.7.38|install symfony/process v2.7.39|install symfony/process v2.7.4|install symfony/process v2.7.5|install symfony/process v2.7.6|install symfony/process v2.7.7|install symfony/process v2.7.8|install symfony/process v2.7.9|install symfony/process v2.8.0|install symfony/process v2.8.1|install symfony/process v2.8.10|install symfony/process v2.8.11|install symfony/process v2.8.12|install symfony/process v2.8.13|install symfony/process v2.8.14|install symfony/process v2.8.15|install symfony/process v2.8.16|install symfony/process v2.8.17|install symfony/process v2.8.18|install symfony/process v2.8.19|install symfony/process v2.8.2|install symfony/process v2.8.20|install symfony/process v2.8.21|install symfony/process v2.8.22|install symfony/process v2.8.23|install symfony/process v2.8.24|install symfony/process v2.8.25|install symfony/process v2.8.26|install symfony/process v2.8.27|install symfony/process v2.8.28|install symfony/process v2.8.29|install symfony/process v2.8.3|install symfony/process v2.8.30|install symfony/process v2.8.31|install symfony/process v2.8.32|install symfony/process v2.8.4|install symfony/process v2.8.5|install symfony/process v2.8.6|install symfony/process v2.8.7|install symfony/process v2.8.8|install symfony/process v2.8.9|install symfony/process v3.0.0|install symfony/process v3.0.1|install symfony/process v3.0.2|install symfony/process v3.0.3|install symfony/process v3.0.4|install symfony/process v3.0.5|install symfony/process v3.0.6|install symfony/process v3.0.7|install symfony/process v3.0.8|install symfony/process v3.0.9|install symfony/process v3.1.0|install symfony/process v3.1.1|install symfony/process v3.1.10|install symfony/process v3.1.2|install symfony/process v3.1.3|install symfony/process v3.1.4|install symfony/process v3.1.5|install symfony/process v3.1.6|install symfony/process v3.1.7|install symfony/process v3.1.8|install symfony/process v3.1.9|install symfony/process v3.2.0|install symfony/process v3.2.1|install symfony/process v3.2.10|install symfony/process v3.2.11|install symfony/process v3.2.12|install symfony/process v3.2.13|install symfony/process v3.2.14|install symfony/process v3.2.2|install symfony/process v3.2.3|install symfony/process v3.2.4|install symfony/process v3.2.5|install symfony/process v3.2.6|install symfony/process v3.2.7|install symfony/process v3.2.8|install symfony/process v3.2.9|install symfony/process v3.3.14
- laravel/valet v2.0.0 requires symfony/process ~2.7|~3.0 -> satisfiable by symfony/process[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, v2.7.5, 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, v2.8.4, 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, v3.3.2, 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].
- Can only install one of: symfony/process[v3.3.0, v4.0.1].
- Can only install one of: symfony/process[v3.3.1, v4.0.1].
- Can only install one of: symfony/process[v3.3.10, v4.0.1].
- Can only install one of: symfony/process[v3.3.11, v4.0.1].
- Can only install one of: symfony/process[v3.3.12, v4.0.1].
- Can only install one of: symfony/process[v3.3.13, v4.0.1].
- Can only install one of: symfony/process[v3.3.2, v4.0.1].
- Can only install one of: symfony/process[v3.3.3, v4.0.1].
- Can only install one of: symfony/process[v3.3.4, v4.0.1].
- Can only install one of: symfony/process[v3.3.5, v4.0.1].
- Can only install one of: symfony/process[v3.3.6, v4.0.1].
- Can only install one of: symfony/process[v3.3.7, v4.0.1].
- Can only install one of: symfony/process[v3.3.8, v4.0.1].
- Can only install one of: symfony/process[v3.3.9, v4.0.1].
- Installation request for symfony/process (locked at v4.0.1) -> satisfiable by symfony/process[v4.0.1].


Installation failed, reverting ./composer.json to its original content.

到底是怎么回事，为什么我不能在全球范围内安装代客？我意识到这可能是某种依赖问题/冲突，但对我来说没有意义。

Answer 1

对于任何人有同样的问题我知道我晚了两年但以防万一有人仍然有这个问题去你的作曲家文件夹

/用户/[name]/AppData/Roaming/Composer

将所有内容从该文件夹移到临时文件夹中进行备份。只要确保你移动（剪切和粘贴），不要复制。该文件夹需要清空。

然后呢

composer global require laravel/valet

鲍勃是你叔叔。

Answer 2

看看https://stackoverflow.com/a/27754096，看看已安装的软件包列表-4.0.1版本中列出的symfony/控制台在那里吗？Lavarel安装程序明确要求symfony/控制台的v2.3或v3. x，因此您可能必须首先通过作曲家全局手动删除symfony/控制台-或者至少查看作曲家全局为什么symfony/控制台查看为什么在该版本中安装了symfony/控制台

Answer 3

Symfony/控制台的安装请求（锁定在v4.0.1，需要^4.0）

symfony/process的安装请求（锁定在v4.0.1）

您的symfony/控制台和symfony/进程包被锁定在v4.0.1（根据您的composer.lock文件），并且您正在尝试安装laravel/valet包，该包需要symfony/进程~2.7|~3.0作为：

$ composer show -a laravel/valet 2.0.6 | grep ^symfony
symfony/process ~2.7|~3.0

但是，您只能根据以下消息安装一个分支：

只能安装一个：symfony/process[v3.3.x，v4.0.x]。

因此，要查看哪些现有的包锁定了它（例如symfony/流程），请运行：

composer global why symfony/process -t

或升级至最新的laravel/valet（v2.0.8），该版本现在支持symfony/process~4.0：

$ composer show -a laravel/valet | grep ^symfony
symfony/process ~2.7|~3.0|~4.0

另请参见：如何解决“只能安装其中一个：”的冲突？