[xwiki-users] Treeview Navigation / Javascript error

Hello again, I've troubles getting any Tree-View-Navigation to run properly. I tried "Space Explorer Panel Application" as well as almost any other tree-view-extension from extensions.xwiki.org . I always ended up getting the following error pop-up: ERROR: xwikiexplorer.js depends on xwiki.js To get rid of it, I had to disable Java-Script and delete the panel. Currently we are using 3 levels in our hierachy within a space. Does anyone know a solution? Maybe someone has a working script running in a panel and would like to share it with me? Any help is very much appreciated. Cheers, Chris