Hi bohfoitoch
The only reason I can think of for that to happen is
if the first entry in the .dep file is missing from the
repo. That is not the case for our repo.
Post the result of this command:
cat /opt/tcemirror
Do this:
rm -rf /etc/sysconfig/tcedir/optional/yad.*
rm -rf /etc/sysconfig/tcedir/optional/zenity.*
tce-load -wi yad zenity
Post any error messages you see.