Task.php
final protected function error($message, $status = null, $nl = true)
    {
        $this->io->error($message, $status, $nl);
    }
final protected function error($message, $status = null, $nl = true)
    {
        $this->io->error($message, $status, $nl);
    }
final protected function error ( $ message , $ status = null , $ nl = true ) { $ this -> io -> error ( $ message , $ status , $ nl ) ; }
Write to STDERR

@param string $message
@param int $status [optional]
@param bool $nl [optional]
Write to STDERR