Why is Composer Failing with 'PHP extension fileinfo is missing from your system' Error?

Troubleshooting "PHP extension fileinfo is missing from your system" Error during Composer Installation

Background:
When attempting to install the Laravel package Intervention Image using Composer, users may encounter the error message "PHP extension fileinfo is missing from your system." This error indicates that the required PHP extension for handling file information is not present on your system.

Problem Description:
The error manifests during the composer update process, where Composer tries to resolve dependencies for the Intervention Image package. However, PHP's fileinfo extension is a prerequisite for this package, and its absence prevents the installation from proceeding.

Solution for Windows Users:

1. Locate the php.ini configuration file on your system.
2. Uncomment the line extension=php_fileinfo.dll.
3. Save the changes to php.ini.
4. Restart Apache for the new php.ini settings to take effect.

Verification:

After completing these steps, the error message should no longer appear when running composer update. The Intervention Image package should be successfully installed.

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