Composer 安裝 Laravel：無法將您的要求解析為一組可安裝的軟件包

Question

我第一次嘗試使用 composer 安裝 Laravel。

按照https://laravel.com/docs/5.1上的文檔，我嘗試使用命令sudo composer global require "laravel/installer" 。

我得到的輸出粘貼在下面：

 Changed current directory to /home/israel/.composer Using version ^2.0 for laravel/installer ./composer.json has been created 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 v2.0.1 requires ext-zip * -> the requested PHP extension zip is missing from your system. - laravel/installer v2.0.0 requires ext-zip * -> the requested PHP extension zip is missing from your system. - Installation request for laravel/installer ^2.0 -> satisfiable by laravel/installer[v2.0.0, v2.0.1]. To enable extensions, verify that they are enabled in those .ini files: - /etc/php/7.2/cli/php.ini - /etc/php/7.2/cli/conf.d/10-opcache.ini - /etc/php/7.2/cli/conf.d/10-pdo.ini - /etc/php/7.2/cli/conf.d/15-xml.ini - /etc/php/7.2/cli/conf.d/20-calendar.ini - /etc/php/7.2/cli/conf.d/20-ctype.ini - /etc/php/7.2/cli/conf.d/20-curl.ini - /etc/php/7.2/cli/conf.d/20-dom.ini - /etc/php/7.2/cli/conf.d/20-exif.ini - /etc/php/7.2/cli/conf.d/20-fileinfo.ini - /etc/php/7.2/cli/conf.d/20-ftp.ini - /etc/php/7.2/cli/conf.d/20-gettext.ini - /etc/php/7.2/cli/conf.d/20-iconv.ini - /etc/php/7.2/cli/conf.d/20-json.ini - /etc/php/7.2/cli/conf.d/20-mbstring.ini - /etc/php/7.2/cli/conf.d/20-phar.ini - /etc/php/7.2/cli/conf.d/20-posix.ini - /etc/php/7.2/cli/conf.d/20-readline.ini - /etc/php/7.2/cli/conf.d/20-shmop.ini - /etc/php/7.2/cli/conf.d/20-simplexml.ini - /etc/php/7.2/cli/conf.d/20-sockets.ini - /etc/php/7.2/cli/conf.d/20-sysvmsg.ini - /etc/php/7.2/cli/conf.d/20-sysvsem.ini - /etc/php/7.2/cli/conf.d/20-sysvshm.ini - /etc/php/7.2/cli/conf.d/20-tokenizer.ini - /etc/php/7.2/cli/conf.d/20-wddx.ini - /etc/php/7.2/cli/conf.d/20-xmlreader.ini - /etc/php/7.2/cli/conf.d/20-xmlwriter.ini - /etc/php/7.2/cli/conf.d/20-xsl.ini You can also run `php --ini` inside terminal to see which files are used by PHP in CLI mode. Installation failed, deleting ./composer.json.

這是否意味着未安裝 PHP？

Answer 1

只需運行sudo apt-get install php7.2-zip && sudo apt-get install php-zip 。 之后，您將再次運行命令（ sudo composer global require "laravel/installer" ）。

它應該工作得很好。

它確實做到了。 :)

Answer 2

如果你試試

sudo apt-get install php7.2-zip

你遇到了錯誤：

sudo: apt-get: command not found

然后，改用自制軟件試試：

brew install php

這對我有用。 希望它可以為某人節省幾分鍾額外的頭疼:) 快樂編碼！

Answer 3

看看 Laravel 的要求：

PHP >= 7.1.3
OpenSSL PHP Extension
PDO PHP Extension
Mbstring PHP Extension
Tokenizer PHP Extension
XML PHP Extension
Ctype PHP Extension
JSON PHP Extension

你認識他們嗎？ 您的錯誤消息指出，您的環境不符合 PHP 版本和擴展，因此您必須先安裝它們。 一旦您安裝了正確的 PHP 版本和相應的擴展，composer 將能夠根據需要安裝 laravel。

希望這可以幫助！ :)