Question

我无法在新鲜＆＃39; laravel 5.5 ＆＃上安装＆＃39; Pop!_OS＆＃39; 39; （基于 Ubuntu 17.10 by system76）linux安装。

无法找到如何删除symfony / console v4.0.1 ＆＃39;。那么有人能帮助我解决这个烦恼吗？

我跟着https://www.youtube.com/watch?v=b38mUODC1l4这个教程，一切都很完美，直到作曲家全球需要＆＃34; laravel / installer＆＃34; 命令。

输入此命令后，终端中的结果为：

    Changed current directory to /home/chakra/.config/composer
Using version ^1.4 for laravel/installer
./composer.json has been updated
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
    - Conclusion: don't install laravel/installer v1.4.1
    - Conclusion: remove symfony/console v4.0.1
    - Installation request for laravel/installer ^1.4 -> satisfiable by laravel/installer[v1.4.0, v1.4.1].
    - Conclusion: don't install symfony/console v4.0.1
    - laravel/installer v1.4.0 requires symfony/console ~2.3|~3.0 -> satisfiable by symfony/console[v2.3.0, ..., v3.4.1].
    - Can only install one of: symfony/console[v3.0.0, v4.0.1].
    ...
    - Can only install one of: symfony/console[v2.8.9, v4.0.1].
    - Installation request for symfony/console (locked at v4.0.1) -> satisfiable by symfony/console[v4.0.1].


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

composer.json /home/chakra/.config/composer（一切都是默认的避风港＆＃t; t改变视频教程中的任何内容）

sudo nano composer.json之后：

{
    "require": {
        "cpriego/valet-linux": "^2.0"
        }
}

Composer，npm，nginx版本：

➜  ~ which composer
/usr/local/bin/composer
➜  ~ composer --version
Composer version 1.5.5 2017-12-01 14:42:57
➜  ~ npm --version
5.5.1
➜  ~ nginx -v
nginx version: nginx/1.12.1 (Ubuntu)
➜  ~

Answer 1

所以在 Nico Haase 的帮助下，我已经明白了。

问题的解决方案是：

删除此安装laravel后，

composer global remove cpriego/valet-linux（这也将删除麻烦的 symfony / console v4.0.1 ）：

重新安装“ Valet Linux ”之后

composer global require "laravel/installer"（它安装了所有必需的软件包，没有任何错误）

composer global require cpriego/valet-linux

现在一切正常。我可以通过laravel new application创建laravel应用程序，并且代客可以正常工作。：）

Answer 2

查看https://stackoverflow.com/a/27754096以查看已安装软件包的列表 - symfony/console是否已在4.0.1版中列出？ Lavarel安装程序明确要求symfony/console的v2.3或v3.x，因此您可能必须先通过symfony/console手动删除composer global remove symfony/console

Laravel安装程序v1.4.1与PHP 7.1软件包不兼容？

Composer，npm，nginx版本：

2 个答案: