src/Console/Commands/BaseCommand.php
public function error($line)
    {
        if (is_array($line)) {
            $lines = [];
            foreach ($line as $one) {
                $lines[] = "<error>$one</error>";
            }

            $this->output->writeln($lines);

            return;
        }

        $this->output->writeln("<error>$line</error>");
    }
public function error($line)
    {
        if (is_array($line)) {
            $lines = [];
            foreach ($line as $one) {
                $lines[] = "<error>$one</error>";
            }

            $this->output->writeln($lines);

            return;
        }

        $this->output->writeln("<error>$line</error>");
    }
Write an error.

@param string|array $line