On Tue, 2011-01-11 at 16:19 -0500, Mike Jakubik wrote:
  Hello,
 I just upgraded from 2.3 to 2.7, after importing the new XAR the Main
 space is showing "Unknown macro: activity, spaces, and tagcloud". Whats
 going on here? I imported everything from the new XAR. Also as a side
 note, all of the Wiki Preferences  pages are showing a
"<pre></pre>" in
 the content.
 Thanks. 
 This seems to be the result of the following bug.
 
http://jira.xwiki.org/jira/browse/XWIKI-5668
 I had to add the default Admin to my wiki and re-import the XAR to fix
 this. However the mysterious<pre>  tags remain. 
The <pre> comes from the fact that the old preferences documents were
created in syntax xwiki/1.0, while the administration application
(included sheets) are now in syntax xwiki/2.0.
--
Sergiu Dumitriu