nngraph: Got 3 inputs instead of 5

[alex3s]

Hi,
Training runs fine, but sampling gives the following error:

th ./sample.lua cv/lm_lstm_epoch7.01_1.3587.t7

nngraph/gmodule.lua:362: Got 3 inputs instead of 5

stack traceback:
	[C]: in function 'error'
	/home/user/torch/install/share/lua/5.1/nngraph/gmodule.lua:362: in function 'forward'
	./sample.lua:173: in main chunk
	[C]: in function 'dofile'
	/home/user/torch/install/lib/luarocks/rocks/trepl/scm-1/bin/th:150: in main chunk
	[C]: at 0x00406670

char-rnn on the same machine doesn't give error.
Updated the nngraph package:
luarocks install nngraph
The issue remains. Thank you for looking into it and for sharing.