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Error while using k-fold

Sananka
Level 1
Error while using k-fold
I keep getting the error

 

Failed to train : <type 'exceptions.KeyError'> : liftVizData
​

when I try to use k-fold cross validation when training my model. The error disappears when I don't use k-fold.

 

 
Does anyone know how I can fix this error? 
 

Operating system used: Windows
Operating system used: Windows
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