# Your first GAN, notebook error **URL:** \ **Category:** Build Basic Generative Adversarial Networks\ **Tags:** week-module-1\ **Created:** [March 1, 2022, 5:19am UTC](https://community.deeplearning.ai/t/your-first-gan-notebook-error/104237 "2022-03-01T05:19:03Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Simon\_Hyde](https://sea1.discourse-cdn.com/dlai/user_avatar/community.deeplearning.ai/simon_hyde/32/15600_2.png) [@Simon\_Hyde](https://community.deeplearning.ai/u/Simon_Hyde)\ **Post date:** [March 1, 2022, 5:19am UTC](https://community.deeplearning.ai/t/your-first-gan-notebook-error/104237/1 "2022-03-01T05:19:04Z")
When I run the course assignment notebook I get the following error on the third cell TypeError Traceback (most recent call last) in 16 assert test\_output.std() \< 0.65 17 —\> 18 test\_gen\_block(25, 12) 19 test\_gen\_block(15, 28) in test\_gen\_block(in\_features, out\_features, num\_test) 1 # Verify the generator block function 2 def test\_gen\_block(in\_features, out\_features, num\_test=1000): ----\> 3 block = get\_generator\_block(in\_features, out\_features) 4 5 # Check the three parts in get\_generator\_block(input\_dim, output\_dim) 17 # [torch.nn — PyTorch 1.10 documentation](https://pytorch.org/docs/stable/nn.html). 18 #### START CODE HERE #### —\> 19 nn.Linear(None, None), 20 nn.BatchNorm1d(None), 21 #### END CODE HERE #### /usr/local/lib/python3.6/dist-packages/torch/nn/modules/linear.py in **init** (self, in\_features, out\_features, bias) 70 self.in\_features = in\_features 71 self.out\_features = out\_features —\> 72 self.weight = Parameter(torch.Tensor(out\_features, in\_features)) 73 if bias: 74 self.bias = Parameter(torch.Tensor(out\_features)) TypeError: new() received an invalid combination of arguments - got (NoneType, NoneType), but expected one of: - (torch.device device) - (torch.Storage storage) - (Tensor other) - (tuple of ints size, torch.device device) didn’t match because some of the arguments have invalid types: (!NoneType!, !NoneType!) - (object data, torch.device device) didn’t match because some of the arguments have invalid types: (!NoneType!, !NoneType!) Is fixing it part of the assignment? ---
**Author:** ![Simon\_Hyde](https://sea1.discourse-cdn.com/dlai/user_avatar/community.deeplearning.ai/simon_hyde/32/15600_2.png) [@Simon\_Hyde](https://community.deeplearning.ai/u/Simon_Hyde)\ **Post date:** [March 1, 2022, 9:41am UTC](https://community.deeplearning.ai/t/your-first-gan-notebook-error/104237/2 "2022-03-01T09:41:17Z")
Opps I see what is happening!