TypeError: Required parameter edge_index is empty.

[LLLLucensus]

It seems to be the internal error torch_geometric. Do anybody know the solution or tricks to walk around it?

m1=self.propagate(edge_index=edge_index1,size=(x1.size(0), x1.size(0)), x=x1,edge_weight=edge_weight1)

File "/opt/conda/lib/python3.7/site-packages/torch_geometric/nn/conv/message_passing.py", line 257, in propagate
msg_kwargs = self.distribute(self.msg_params, kwargs)
File "/opt/conda/lib/python3.7/site-packages/torch_geometric/nn/conv/message_passing.py", line 180, in distribute
raise TypeError(f'Required parameter {key} is empty.')
TypeError: Required parameter edge_index is empty.

[rusty1s]

I cannot reproduce this. Do you mind to share a reproducible example? Can you also try to call via self.propagate(edge_index, size=...) (not using edge_index as a keyword argument)?