OS: Ubuntu 17.10 (Artful Aardvark)
I have installed the LAMP stack and Laravel, and when I tried composer install
in my Laravel application, I got the following errors.
- Installation request for phar-io/manifest 1.0.1 -> satisfiable by phar-io/manifest[1.0.1]. - phar-io/manifest 1.0.1 requires ext-dom * -> the requested PHP extension dom is missing from your system. Problem 2 - Installation request for phpunit/php-code-coverage 5.2.2 -> satisfiable by phpunit/php-code-coverage[5.2.2]. - phpunit/php-code-coverage 5.2.2 requires ext-dom * -> the requested PHP extension dom is missing from your system. Problem 3 - Installation request for phpunit/phpunit 6.4.3 -> satisfiable by phpunit/phpunit[6.4.3]. - phpunit/phpunit 6.4.3 requires ext-dom * -> the requested PHP extension dom is missing from your system. Problem 4 - Installation request for theseer/tokenizer 1.1.0 -> satisfiable by theseer/tokenizer[1.1.0]. - theseer/tokenizer 1.1.0 requires ext-dom * -> the requested PHP extension dom is missing from your system. 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-opcache.ini - /etc/php/7.1/cli/conf.d/10-pdo.ini - /etc/php/7.1/cli/conf.d/20-calendar.ini - /etc/php/7.1/cli/conf.d/20-ctype.ini - /etc/php/7.1/cli/conf.d/20-exif.ini - /etc/php/7.1/cli/conf.d/20-fileinfo.ini - /etc/php/7.1/cli/conf.d/20-ftp.ini - /etc/php/7.1/cli/conf.d/20-gettext.ini - /etc/php/7.1/cli/conf.d/20-iconv.ini - /etc/php/7.1/cli/conf.d/20-json.ini - /etc/php/7.1/cli/conf.d/20-mbstring.ini - /etc/php/7.1/cli/conf.d/20-pdo.ini - /etc/php/7.1/cli/conf.d/20-phar.ini - /etc/php/7.1/cli/conf.d/20-posix.ini - /etc/php/7.1/cli/conf.d/20-readline.ini - /etc/php/7.1/cli/conf.d/20-shmop.ini - /etc/php/7.1/cli/conf.d/20-sockets.ini - /etc/php/7.1/cli/conf.d/20-sysvmsg.ini - /etc/php/7.1/cli/conf.d/20-sysvsem.ini - /etc/php/7.1/cli/conf.d/20-sysvshm.ini - /etc/php/7.1/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.
I have rechecked the files, all extensions are enabled and they are located in the
/usr/lib/php/20160303
folder.
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Answer
Sometimes the problem is the php-xml extension.
Try:
sudo apt-get install php-xml