Fatal error: Uncaught Error: Interface 'Magento\SalesRule\Api\Data\RuleExtensionInterface' not found in /var/www/html/generated/code/Magento/SalesRule/Api/Data/RuleExtension.php:7 Stack trace: #0 /var/www/html/vendor/magento/framework/Code/Generator/Io.php(160): include() #1 /var/www/html/vendor/magento/framework/Code/Generator.php(142): Magento\Framework\Code\Generator\Io->includeFile() #2 /var/www/html/vendor/magento/framework/Code/Generator.php(217): Magento\Framework\Code\Generator->generateClass() #3 /var/www/html/vendor/magento/framework/Code/Generator.php(128): Magento\Framework\Code\Generator->tryToLoadSourceClass() #4 /var/www/html/vendor/magento/framework/Code/Generator/Autoloader.php(53): Magento\Framework\Code\Generator->generateClass() #5 [internal function]: Magento\Framework\Code\Generator\Autoloader->load() #6 /var/www/html/vendor/magento/framework/ObjectManager/Factory/AbstractFactory.php(121): spl_autoload_call() #7 /var/www/html/vendor/magento/framework/ObjectManager/Factory/Compiled.php(108): Magento\F in /var/www/html/generated/code/Magento/SalesRule/Api/Data/RuleExtension.php on line 7