Solve: PHP Fatal error: Uncaught Error: Class AbstractTransformer. ▷ List of libs which containing the class AbstractTransformer

PhpCsFixer\Tokenizer\AbstractTransformer

This class belongs to the vendor Efureev and the package Php-cs-fixer-1

This class belongs to the vendor Rinsvent and the package Data2dto-bundle

This class belongs to the vendor Cloudmersive and the package Cloudmersive_security_api_client

This class belongs to the vendor Break-down and the package Infrastructure-meta

This class belongs to the vendor Juliangut and the package Slim-routing

This class belongs to the vendor Pixelstudio and the package Wp-instafeed

This class belongs to the vendor Sciarcinski and the package Laravel-transformer

This class belongs to the vendor Tree-soft and the package Specifications

This class belongs to the vendor Continuum and the package Support

This class belongs to the vendor Kanel and the package Mapper