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我是一名 Web 开发人员。我曾在 Windows 操作系统中创建过项目,但现在我已完全切换到 Ubuntu 20.04。我已经安装了 PHP 和composer
。但是当我想在其中创建 Laravel 项目时,htdocs
它会创建项目但vendor
缺少文件夹。当我在文件夹composer update
中的 CLI 中写入时htdocs
,它会显示以下错误:
1=>
Cannot create cache directory /home/saad/.cache/composer/repo/https---repo.packagist.org/, or directory is not writable. Proceeding without cache
Cannot create cache directory /home/saad/.cache/composer/files/, or directory is not writable. Proceeding without cache
2=>
PHP temp directory (/tmp) does not exist or is not writable to Composer. Set sys_temp_dir in your php.ini
3=>
Your requirements could not be resolved to an installable set of packages.
然后显示这些:
Problem 1
- laravel/framework v7.25.0 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v7.24.0 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework 7.x-dev requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- Installation request for laravel/framework ^7.24 -> satisfiable by laravel/framework[7.x-dev, v7.24.0, v7.25.0].
To enable extensions, verify that they are enabled in your .ini files:
- /etc/php/7.4/cli/php.ini
- /etc/php/7.4/cli/conf.d/10-opcache.ini
- /etc/php/7.4/cli/conf.d/10-pdo.ini
- /etc/php/7.4/cli/conf.d/20-bcmath.ini
- /etc/php/7.4/cli/conf.d/20-calendar.ini
- /etc/php/7.4/cli/conf.d/20-ctype.ini
- /etc/php/7.4/cli/conf.d/20-exif.ini
- /etc/php/7.4/cli/conf.d/20-ffi.ini
- /etc/php/7.4/cli/conf.d/20-fileinfo.ini
- /etc/php/7.4/cli/conf.d/20-ftp.ini
- /etc/php/7.4/cli/conf.d/20-gettext.ini
- /etc/php/7.4/cli/conf.d/20-iconv.ini
- /etc/php/7.4/cli/conf.d/20-json.ini
- /etc/php/7.4/cli/conf.d/20-phar.ini
- /etc/php/7.4/cli/conf.d/20-posix.ini
- /etc/php/7.4/cli/conf.d/20-readline.ini
- /etc/php/7.4/cli/conf.d/20-shmop.ini
- /etc/php/7.4/cli/conf.d/20-sockets.ini
- /etc/php/7.4/cli/conf.d/20-sysvmsg.ini
- /etc/php/7.4/cli/conf.d/20-sysvsem.ini
- /etc/php/7.4/cli/conf.d/20-sysvshm.ini
- /etc/php/7.4/cli/conf.d/20-tokenizer.ini
You can also run `php --ini` inside terminal to see which files are used by PHP in CLI mode.
答案1
您必须进入项目文件夹才能运行作曲家......
例子:
cd path/to/htdocs/your-laravel-project-folder
然后运行
composer install
答案2
您遇到的问题之一是composer
没有写入权限/home/saad/.cache/composer/
。
另一个问题是你缺少软件包php-mbstring
。通过以下方式安装:
sudo apt install php7.4-mbstring