Light-- opened a new issue #20329:
URL: https://github.com/apache/incubator-mxnet/issues/20329
## Description
(A clear and concise description of what the bug is.)
### Error Message
```
Traceback (most recent call last):
File "/home/user1/batch_vis_mxnet.py", line 708, in <module>
batch_vis(image_path=imgDir, modelPrefix=modelPrefix,
fc7Prefix=fc7Prefix, iterNum=iterNum, frameWork='mxnet')
File "/home/user1/batch_vis_mxnet.py", line 642, in batch_vis
generate_heatmap(i, grad_cam, savePath, gb_model)
File "/home/user1/batch_vis_mxnet.py", line 417, in generate_heatmap
mask = grad_cam(input, target_index)
File "/home/user1/batch_vis_mxnet.py", line 170, in __call__
features, output = self.extractor(input.cuda())
File "/home/user1/batch_vis_mxnet.py", line 122, in __call__
target_activations, output = self.feature_extractor(x)
File "/home/user1/batch_vis_mxnet.py", line 85, in __call__
x = module(x)
File
"/home/user1/miniconda3/lib/python3.7/site-packages/mxnet/symbol/symbol.py",
line 454, in __call__
s._compose(*args, **kwargs)
File
"/home/user1/miniconda3/lib/python3.7/site-packages/mxnet/symbol/symbol.py",
line 497, in _compose
raise TypeError('Compose expect `Symbol` as arguments')
TypeError: Compose expect `Symbol` as arguments
Process finished with exit code 1
```
## To Reproduce
```
all_layers = self.model.symbol.get_internals() # list all symbol
names = all_layers.list_outputs()
for name in names:
module = all_layers[name]
x = module(x)
```
## Environment
mxnet 1.6.0
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