[TYPO3-commerce] Commerce+TemplateVoila. Data Structure Error - any ideas?

[Cray Flatline]

I'm trying to setup site with commerce (clean install). I use 
Templavoila for first time, but I made everything as written in the FTB 
and site is working well.

Now I'm installing Commerce extension (RC1) and when I try to add 
Attributes to Product, it writes me in a place of attributes list "Data 
structure ERROR: No ROOT element found for sheet "sDEF".

Does anybody knows what happen? I want to start use TV for future and I 
don't want to roll back to autoparser.

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WBR, Cray Flatline