Getting Error install magento 2.4.7 using composer - XAMPP

Create auth.json file in your root directory with your public and private key with below code.

    {
  "http-basic": {
    "repo.magento.com": {
      "username": "sdfdsfdsfdsfdsfdsfsdfdsfsdfdsfsd",
      "password": "sdfdsfdsfsdfsdfsdfsdfsdfd"
    }
  }
}

To install Magento 2 using the command line, you need to configure the public and private keys in Composer. These keys are required to authenticate with Magento's repository.

Here’s the command to set the private and public key in Composer:

composer config --global http-basic.repo.magento.com <public_key> <private_key>

Replace:

• <public_key>: Your Magento Marketplace public key.
• <private_key>: Your Magento Marketplace private key.

Example:

If your public key is abc123 and your private key is xyz789, the command would look like this:

composer config --global http-basic.repo.magento.com abc123 xyz789

Once the keys are set, you can proceed with installing Magento 2 using Composer. Let me know if you'd like detailed installation steps!

Make sure your internet connection is stable. Verify that the curl library is enabled in your XAMPP setup and ensure all other libraries required for Magento 2 are properly configured. Additionally, check your Composer version for compatibility.

If the problem continues, you may try using WAMP software as an alternative.

We shouldn't install Magento on the Windows hosting machine. I encourage you to use Docker and Warden tool to setup your Magento project.

In your case, you can add the verbose mode -vvv to see more details.

composer create-project --repository-url=https://repo.magento.com/ magento/project-community-edition=2.4.7 mage247test -vvv

On Windows operating systems, the problem might be caused by a DNS issue. Try flushing the DNS cache by running the following command: ipconfig /flushdns.

Source: https://stackoverflow.com/a/76842312.

Instructions to Flush DNS on Windows:

For Windows 10 and Windows 11

1. Open Command Prompt as Administrator:

• Press Windows Key + S to open the search bar.
• Type cmd or Command Prompt.
• Right-click on Command Prompt from the search results and select Run as administrator.

2. Flush DNS Cache:

• In the Command Prompt window, type the following command and press Enter:

ipconfig /flushdns

You should see a message saying: Successfully flushed the DNS Resolver Cache.

3. Close the Command Prompt:`

Once the message appears, you can close the Command Prompt window.

For Windows 7 and Windows 8:

1. Open Command Prompt as Administrator:

• Press the Windows Key, type cmd or Command Prompt.
• Right-click Command Prompt from the search results and choose Run as administrator.

2. Flush DNS Cache:

• In the Command Prompt window, type the following command and press Enter:

ipconfig /flushdns

• You should see a confirmation message saying: Windows IP Configuration. Successfully flushed the DNS Resolver Cache.

3. Close the Command Prompt:

• After the message appears, you can close the Command Prompt.