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Laravel Installation Error: “installable set of packages error”

When starting a new Laravel project, encountering installation errors can be frustrating, especially for beginners. One common issue that arises during Laravel installation is the error message: “Your requirements could not be resolved to an installable set of packages.” This error typically occurs due to missing PHP extensions or misconfigured settings.

Error Description: Upon attempting to create a new Laravel project using the composer create-project command, you may encounter the following error message.

Your requirements could not be resolved to an installable set of packages.

Problem 1
- laravel/framework[v8.54.0, ..., 8.x-dev] require league/flysystem ^1.1 -> satisfiable by league/flysystem[1.1.0, ..., 1.x-dev].
- league/flysystem[1.1.0, ..., 1.x-dev] require ext-fileinfo * -> it is missing from your system. Install or enable PHP's fileinfo extension.
- Root composer.json requires laravel/framework ^8.54 -> satisfiable by laravel/framework[v8.54.0, ..., 8.x-dev].

Solution:

The error message indicates that the PHP extension fileinfo is missing or not enabled on your system. To resolve this issue, follow these steps:

  1. Edit php.ini File:
    • Locate the php.ini file in your PHP installation directory. This file is responsible for configuring PHP settings.
    • Uncomment the line extension = fileinfo by removing the semicolon (;) at the beginning of the line. This enables the fileinfo extension.
    • Save the changes to the php.ini file.
  2. Delete Project Directory:
    • If you’ve attempted to create a Laravel project before encountering the error, delete the project directory to avoid any conflicts.
    • Navigate to the directory where you attempted to create the Laravel project and delete it.
  3. Re-run Laravel Installation:
    • Open your command-line interface (CLI) and navigate to the directory where you want to create the Laravel project.
    • Run the command laravel new project_name to create a new Laravel project, replacing project_name with your desired project name.

Additional Steps (if necessary): If uncommenting the extension = fileinfo line in php.ini doesn’t resolve the issue, you may need to grant administrator permissions to edit the file.

Right-click on the php.ini file and select “Properties.”

Go to the “Security” tab and click “Edit.”

Select the appropriate user/group and grant “Full Control” permissions.

Save the changes to the php.ini file.

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