Я работаю в Linux Ubuntu, у меня есть проект Symfony 4, и мне не удалось выполнить эти функции. После обновления моей ОС у меня возникла проблема. Когда я запускаю этот проект:
установка композитора
Я получил это сообщение:
Loading composer repositories with package information
Installing dependencies (including require-dev) from lock file
Your requirements could not be resolved to an installable set of packages.
Problem 1
- Installation request for nexylan/slack v2.0.0 -> satisfiable by nexylan/slack[v2.0.0].
- nexylan/slack v2.0.0 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
Problem 2
- Installation request for symfony/framework-bundle v4.0.14 -> satisfiable by symfony/framework-bundle[v4.0.14].
- symfony/framework-bundle v4.0.14 requires ext-xml * -> the requested PHP extension xml is missing from your system.
Problem 3
- Installation request for symfony/debug-bundle v4.0.4 -> satisfiable by symfony/debug-bundle[v4.0.4].
- symfony/debug-bundle v4.0.4 requires ext-xml * -> the requested PHP extension xml is missing from your system.
Problem 4
- symfony/framework-bundle v4.0.14 requires ext-xml * -> the requested PHP extension xml is missing from your system.
- symfony/maker-bundle v1.4.0 requires symfony/framework-bundle ^3.4|^4.0 -> satisfiable by symfony/framework-bundle[v4.0.14].
- Installation request for symfony/maker-bundle v1.4.0 -> satisfiable by symfony/maker-bundle[v1.4.0].
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-apcu.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-imagick.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
- /etc/php/7.4/cli/conf.d/20-xdebug.ini
You can also run `php --ini` inside terminal to see which files are used by PHP in CLI mode.
Можете ли вы помочь мне решить эту проблему?