Error “root Composer.json Requires Php ^7.3 But Your Php Version (8.0.0) Does Not Satisfy That Requirement”

This error message indicates that the root composer.json file of your project requires PHP version 7.3 or higher, but your current PHP version is 8.0.0, which does not meet that requirement.

To resolve this error, you have a few options:

  1. Update your project’s composer.json file:

    • Locate the composer.json file in the root of your project.
    • Look for the "require" section and find the PHP version requirement ("php": "^7.3").
    • Update the PHP requirement to match your current PHP version. In this case, you can change it to "php": "^8.0".
    • Save the changes and try running Composer again: composer install or composer update.
  2. Downgrade your PHP version:

    • If you don’t need PHP 8.0 features specific to your project, you can choose to downgrade your PHP version to 7.3.
    • Consult the documentation or resources specific to your operating system for instructions on how to downgrade PHP.
    • After downgrading, try running Composer again.
  3. Use the --ignore-platform-reqs flag:

    • If you want to proceed with the current PHP version despite the version requirement mismatch, you can use the --ignore-platform-reqs flag when running Composer.
    • This flag tells Composer to ignore the PHP version requirement in the composer.json file.
    • Run Composer with the flag like this: composer install --ignore-platform-reqs or composer update --ignore-platform-reqs.

Note: Ignoring the PHP version requirement can lead to compatibility issues or unexpected behavior. It’s generally recommended to update the project’s composer.json file or ensure your PHP version matches the requirement if possible.

About the Author Rex

I'm a passionate tech blogger with an insatiable love for programming! From my early days tinkering with code, I've delved into web dev, mobile apps, and AI. Sharing insights and tutorials with the world is my joy, connecting me to a global community of like-minded tech enthusiasts. Python holds a special place in my heart, but I embrace all challenges. Constantly learning, I attend tech conferences, contribute to open-source projects, and engage in code review sessions. My ultimate goal is to inspire the next generation of developers and contribute positively to the ever-evolving tech landscape. Let's code together!