Element 'item': Duplicate key-sequence ['webp'] in...

Go to
Magento.com

My Account Speaker Directory Find a Meetup

Magento Forums

Hello everyone, I have an error. I'm trying to run a magento command but I get an error.
Element 'item': Duplicate key-sequence ['webp'] in key identity-constraint 'argumentItemName'.
Line: 214

Screenshoot: http://prntscr.com/mhh63n
Thanks advance!

Element 'item': Duplicate key-sequence ['webp'] in key identity-constraint 'argumentItemName'. Line:

Element 'item': Duplicate key-sequence ['webp'] in key identity-constraint 'argumentItemName'. Line: