Problem in running vqa_train.lua with cpu

[warahul]

Hi
I tried to run 004_train_DPPnet_fixed_cnn/vqa_train.lua -gpuid -1 but I encounterd following error:

lua: bad argument #1 to '?' (table expected, got string)
stack traceback:
[C]: ?
[C]: in function 'require'
vqa_train.lua:102: in main chunk
[C]: ?

Can you please suggest possible reasons or ways to fix it.

Thanks