Strict standards Warning in admin item

Hello people!
excuse my english
when in joomla global configuration (server)  i select the error Reporting To --> development
(the highest error reporting)

in the components created with joomla component creator (certainly excellent =)

in the view, in the backend,  of a single Item created appears the Following warning:


i know that strict standars warning of PHP can be a  simple

suggestion to improve the code

as the php manual says, and does not indicate an catastrophic error.

but, it is better if there were no messages of php at all , i think
=)
Regards and excuse my english again.

thanks for reading