Magento 2 Upgrade – How to Solve ‘Unable to Apply Data Patch’ Error

I fixed it removing all Magento MSI modules running these commands:

composer require yireo/magento2-replace-inventory:2.3.*
bin/magento s:upgrade
bin/magento deploy:mode:set developer
bin/magento setup:static-content:deploy -f
bin/magento setup:di:compile
bin/magento cache:flush
bin/magento index:reindex

I found a workaround for Windows OS. Image Adapter try opens to image files ('open function in Gd2.php line 63). validateURLScheme function return false always because it checking 'URL' format but local files not valid for this format, so it returns false.

Find validateURLScheme function in vendor\magento\framework\Image\Adapter\Gd2.php file. at line 96. Replace function with this:

private function validateURLScheme(string $filename) : bool   {
          $allowed_schemes = ['ftp', 'ftps', 'http', 'https'];
          $url = parse_url($filename);
          if ($url && isset($url['scheme']) && !in_array($url['scheme'], $allowed_schemes) && !file_exists($filename)) {
              return false;
          }

          return true;   
}