在Ubuntu中安装laravel时出错

Question

我有PHP版本：

php -v
PHP 7.1.9-1

作曲者版本：

Composer version 1.5.2 2017-09-11 16:59:25

现在，我遇到了这个错误，由于我是这项技术的新手，所以我无法解决它。

 composer global require "laravel/installer"
    Changed current directory to /home/indous-ubuntu/.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
        - laravel/installer v1.4.1 requires ext-zip * -> the requested PHP extension zip is missing from your system.
        - laravel/installer v1.4.0 requires ext-zip * -> the requested PHP extension zip is missing from your system.
        - Installation request for laravel/installer ^1.4 -> satisfiable by laravel/installer[v1.4.0, v1.4.1].

      To enable extensions, verify that they are enabled in your .ini files:
        - /etc/php/7.1/cli/php.ini
        - /etc/php/7.1/cli/conf.d/10-mysqlnd.ini
        - /etc/php/7.1/cli/conf.d/10-opcache.ini
        - /etc/php/7.1/cli/conf.d/10-pdo.ini
        - /etc/php/7.1/cli/conf.d/15-xml.ini
        - /etc/php/7.1/cli/conf.d/20-calendar.ini

      You can also run `php --ini` inside terminal to see which files are used by PHP in CLI mode.

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

如果有人知道是什么问题，请帮助我！

提前致谢！

Answer 1

编辑composer.json文件并替换为

"require": {
    "laravel/framework": "4.2.*",
    "laracasts/commander": "~1.0",
    "laracasts/validation": "~1.0",
    "laracasts/presenter": "0.1.*"
},
"require-dev": {
    "way/generators": "~2.0"
},

此代码的参考以及更多详细信息

Answer 2

启用您的php ext-zip lib。 用安装

sudo apt-get install php7.0-zip为php版本7 sudo apt-get install php7.0-zip

Answer 3

正如错误中已明确描述的那样，您缺少php-zip扩展名：

问题1-laravel / installer v1.4.1需要ext-zip *->系统中缺少所请求的PHP扩展zip。

尝试使用以下命令安装它（使用sudo ）：

apt-get install php-zip

它将自动将其安装为PHP7，作为Ubuntu存储库中PHP的默认版本。

PS：如果您已经安装了php-zip，但是仍然无法正常工作，请将扩展名添加到/etc/php php.ini文件中，您就可以了。