Dhtmlx tree ver 5.1 exception thrown and not caught

Suite and Optimus Suite 5
#1

Hello everyone!
I start working with dhmtlx Tree today. recently I have had very nice experience with Gantt and Grid, thank you.
I’ve downloaded the package from the site and when I try to run any example locally, I’ve got error in the developer’s console of IE11

Exception thrown and not caught File: dhtmlxtree.js, line: 9, col: 31232
Si I can’t see any tree in the region specified.
Could you help me?

#2

Please, make sure that you are using any kind of web server to open the samples.

#3

OK, the problem was in missing xml file.