name : UnableToCheckExistence.php <?php declare(strict_types=1); namespace League\Flysystem; use RuntimeException; use Throwable; class UnableToCheckExistence extends RuntimeException implements FilesystemOperationFailed { final public function __construct(string $message = "", int $code = 0, ?Throwable $previous = null) { parent::__construct($message, $code, $previous); } public static function forLocation(string $path, ?Throwable $exception = null): static { return new static("Unable to check existence for: {$path}", 0, $exception); } public function operation(): string { return FilesystemOperationFailed::OPERATION_EXISTENCE_CHECK; } }