Can't Install Composer on Windows 11 due to Certificate Issues
In this article, we will discuss the issue of installing Composer on Windows 11 and how to resolve it, particularly when encountering the error message "Composer installer script not successful [exit code 1]. OpenSSL failed certificate verify fail." We will cover key concepts related to Composer and certificate verification issues, including detailed context, subtitles, and code blocks where necessary.
What is Composer?
Composer is a dependency management tool for PHP programming language. It allows developers to declare the libraries their projects depend on and it will manage (install/update) them for you. It is similar to tools such as npm (Node.js) or pip (Python).
Installing Composer on Windows 11
To install Composer on Windows 11, follow the steps outlined on the official website: https://getcomposer.org/download/
curl -sS https://getcomposer.org/installer -o composer-setup.php
php -r "if (hash_file('sha384', 'composer-setup.php') === 'e0012edf3e80b6978849f5eff0d4b4e4c79ff1609dd1e613307e16318854d24ae64f26d17af3ef0bf7cfb710ca74755a') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"
php composer-setup.php --install-dir=C:\src --filename=composer.phar
Certificate Verification Issue
Certificate verification issues typically occur when the system cannot validate the authenticity of the SSL certificate used during download. This can happen if the system's certificate store is outdated or misconfigured.
In the case of installing Composer, the error message "OpenSSL failed certificate verify fail" indicates that there is an issue verifying the SSL certificate. This can prevent the installer script from executing successfully.