PHP Laravel error - Your requirements could not be resolved to an installable set of packages

Stefan Izdrail

Founder & Senior Architect · 2026-06-29

Laravel Company
Title: Solving Laravel's "Your requirements could not be resolved" Issue in WSL2 Ubuntu Body: Creating a Laravel project using Composer on your WSL2 Ubuntu environment can sometimes lead to the error message "Your requirements could not be resolved to an installable set of packages." This issue often arises due to missing PHP extensions. In this comprehensive guide, we'll demonstrate how you can solve this problem and successfully create your Laravel project. Step 1: Checking PHP Extensions To begin with, verify if the extensions for XML (ext-xml) and DOM (ext-dom) are installed and enabled in your system. Here is a list of their respective configuration files where you can enable or disable them: - /etc/php/8.1/cli/php.ini - /etc/php/8.1/cli/conf.d/10-opcache.ini - /etc/php/8.1/cli/conf.d/10-pdo.ini - /etc/php/8.1/cli/conf.d/20-calendar.ini - ... Step 2: Installing Missing Extensions If you find that these extensions are missing or disabled, follow the below steps to install and enable them on your system: 1. Run `sudo apt update` to ensure your package list is up-to-date. 2. Install extension for XML (ext-xml) by running `sudo apt install php8.1-xml`. 3. If you also need the DOM extension, run `sudo apt install php8.1-xml -y && sudo apt install php8.1-dom -y`. 4. Enable these extensions in their respective configuration files. For example: - /etc/php/8.1/cli/conf.d/10-opcache.ini: add `extension=xt.so` and save the file - /etc/php/8.1/cli/conf.d/20-dom.ini: add `extension=dom.so` and save the file Step 3: Testing PHP Extensions To ensure your changes are successful, run the following command: ```bash php -m | grep -e xml | grep -v 'core' php -m | grep -e dom | grep -v 'core' ``` If you see 'xml', 'dom' and their respective versions in your output, it means the extensions are installed and enabled correctly. Step 4: Creating Laravel Project Once your PHP extensions are properly configured, try running this command again: ```bash composer create-project laravel/laravel example-app ``` As long as you have followed the steps above, the command should run successfully and your Laravel project will be created within the specified directory. In conclusion, to solve the issue of "Your requirements could not be resolved to an installable set of packages" in a WSL2 Ubuntu environment, make sure to check and enable the required PHP extensions (ext-xml and ext-dom). Follow these steps meticulously, testing your progress along the way, as incorrectly enabling or disabling extension configurations can result in serious errors. By incorporating best practices, you'll be able to successfully create Laravel projects on your Linux environment without hassle.