[xwiki-users] Post-setup : Unknow macro

Hi I've just finished to install a xwiki enterprise 3.0 with postgresql My main site works : http://server:8080/xwiki/bin/view/Main/ However, I have this message in the main site Unknow macro : spaces, Unknow macro : activity, Unknow macro : tags. I can crate spaces, but i can not see or edith them. I assume because the space macro does not work. thanks for your help.