lua/5.2/nn/JoinTable.lua:38: bad argument #1 to 'copy' (sizes do not match at /home/user/torch/extra/cutorch/lib/THC/THCTensorCopy.cu:31) about enet-training HOT 1 OPEN

I'm also getting similar error:

/torch/install/share/lua/5.1/nn/JoinTable.lua:39: bad argument #1 to 'copy' (sizes do not match at /cutorch/lib/THC/THCTensorCopy.cu:31)

I checked some closed issues like this, but couldn't find exact solution for me.

In my case, I'm just trying to test the provided model, model-cityscapes.net, by following code:

require 'nn'
require 'image'
require 'cunn'
require 'cudnn'
torch.setdefaulttensortype('torch.FloatTensor')
test_img = 'data/cityscape.png'
network = 'data/model-cityscapes.net'
net = torch.load(network)
im = image.load(test_img)
im2 = image.scale(im, 1024, 512)
im2 = im2:cuda()
output = net:forward(im2)

The error occurs at the last line.
I think the image is scaled appropriately for model-cityscapes.net.
I really appreciate if someone give me some comments or suggestions.
Thank you.

from enet-training.