What is the best method to fix the following error in R?

04 April 2015 1 10K Report

I need to use varImp function on neural network model created by nnet method via caret package. When I try to use varImp the error occurs:

Error in i2h[hidden, input]

Inder Rawal

Please go through the following link.

http://stackoverflow.com/questions/23872506/error-when-using-varimp-for-nnet-neural-network

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