What are some common issues when using Composer to install PHP packages like TCPDF and FPDI?

One common issue when using Composer to install PHP packages like TCPDF and FPDI is version conflicts between the packages and their dependencies. To solve this, you can try updating Composer to the latest version, running `composer update` to resolve dependencies, or manually specifying compatible versions in your `composer.json` file.

// Example of specifying compatible versions in composer.json
{
    "require": {
        "tecnickcom/tcpdf": "^6.4",
        "setasign/fpdi": "^2.3"
    }
}