bad argument #2 to ?(expecting number or torch.DoubleTensor or torch.DoubleStorage at Tensor.c:1125)

Question

The code i used is:

  local word2vec=nn.LookupTable(sent_len,300)

then got the error:bad argument2 # to ?(expecting number or torch.DoubleTensor or torch.DoubleStorage at Tensor.c:1125)

Answer 1

after many times trial, I finally find is the reason of type of sent_len, It should be a number type but it is not in my codes.