runtime error

thon3.10/site-packages/zeta/nn/modules/__init__.py", line 47, in <module> from zeta.nn.modules.mlp_mixer import MLPMixer File "/usr/local/lib/python3.10/site-packages/zeta/nn/modules/mlp_mixer.py", line 145, in <module> output = mlp_mixer(example_input) File "/usr/local/lib/python3.10/site-packages/torch/nn/modules/module.py", line 1532, in _wrapped_call_impl return self._call_impl(*args, **kwargs) File "/usr/local/lib/python3.10/site-packages/torch/nn/modules/module.py", line 1541, in _call_impl return forward_call(*args, **kwargs) File "/usr/local/lib/python3.10/site-packages/zeta/nn/modules/mlp_mixer.py", line 125, in forward x = mixer_block(x) File "/usr/local/lib/python3.10/site-packages/torch/nn/modules/module.py", line 1532, in _wrapped_call_impl return self._call_impl(*args, **kwargs) File "/usr/local/lib/python3.10/site-packages/torch/nn/modules/module.py", line 1541, in _call_impl return forward_call(*args, **kwargs) File "/usr/local/lib/python3.10/site-packages/zeta/nn/modules/mlp_mixer.py", line 63, in forward y = self.tokens_mlp(y) File "/usr/local/lib/python3.10/site-packages/torch/nn/modules/module.py", line 1532, in _wrapped_call_impl return self._call_impl(*args, **kwargs) File "/usr/local/lib/python3.10/site-packages/torch/nn/modules/module.py", line 1541, in _call_impl return forward_call(*args, **kwargs) File "/usr/local/lib/python3.10/site-packages/zeta/nn/modules/mlp_mixer.py", line 30, in forward y = self.dense1(x) File "/usr/local/lib/python3.10/site-packages/torch/nn/modules/module.py", line 1532, in _wrapped_call_impl return self._call_impl(*args, **kwargs) File "/usr/local/lib/python3.10/site-packages/torch/nn/modules/module.py", line 1541, in _call_impl return forward_call(*args, **kwargs) File "/usr/local/lib/python3.10/site-packages/torch/nn/modules/linear.py", line 116, in forward return F.linear(input, self.weight, self.bias) RuntimeError: mat1 and mat2 shapes cannot be multiplied (512x4 and 512x512)

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