Stefan Schmiedl wrote:
> 
> /usr/local/lib/ruby/1.9/rexml/parsers/treeparser.rb:1:in `require': No
> such file to load -- rexml/validation/validationexception (LoadError)
>


It looks like your REXML installation is screwed up.  Go to your Ruby 
CVS checkout and use `cvs update -d'.  This should pull down the 
`rexml/validation' directories.

Recompile 1.9.0 and take another shot.

_why