Error in "Data queries"

[CLokto]

Hi,

First, i am sorry for my English
I run on a Debian Lenny machine.
Then, I configure Cacti for a Cisco Routeur and I need to create a new Data queries but when I create the Data Queries on the exemple of a Cacti configuration already existent, I have this error message :

Could not locate XML file.

I have already did this operation with an other Data queries but i don't have this message.

Have you any Ideas ?

[gandalf]

Please see http://docs.cacti.net/manual:087:3a_adv ... ta_queries
R.