Strict warning Only variable...

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I get this message:

Strict warning: Only variables should be passed by reference in views_handler_area_menu->render() (line 32 of /.../sites/all/modules/views_menuarea/views_handler_area_menu.inc).

I made a fresh install in another sub domain just to test and I also get this error:

I´ve checked the line 32 of the file and I found this:

function render($empty = FALSE) {
if (!empty($this->options['menu'])) {
return render(menu_tree($this->options['menu']));
}
return '';

My question is how to solve this.

Thanks

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Hi ElDourado7,

Please post issues related to 3rd party modules such as Views Menu Area to their project pages to get better advice.

Kind regards,
Will