Problem with language file ?

Hi, i can't translate 4 lines, when i translate them i have an error message on poedit. It's about msgid_plural.
On fundraiser.php:278, 288, 298 and 308 :
'label_count' => _n_noop( 'Completed <span class="count">(%s)</span>', 'Completed <span class="count">(%s)</span>' ),

Is it normal to have this message twice ?