if your wpmu plugin is using wp_register_sidebar_widget(), then you will get this error.

Very simple, of coz this wpmu, not wp. Just an easy change, will let you fly

take the wp_ off, you are on your way.

register_sidebar_widget()

register_widget_control()

国际奥委会(International Olympic Committee)明确规定，奥运冠军的金牌至少需镀6克黄金，以目前的金价计算约值191美元。