(Stable Cascade) The controlnet is not working, an error occurred on the 【Apply Controlnet】node

[daidongzhe]

【Apply Controlnet】node & canny controlnet model

error info:

ERROR:root:!!! Exception during processing !!!
ERROR:root:Traceback (most recent call last):
File "E:__ai_env\comfyui\ComfyUI_windows_portable\ComfyUI\execution.py", line 152, in recursive_execute
output_data, output_ui = get_output_data(obj, input_data_all)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:__ai_env\comfyui\ComfyUI_windows_portable\ComfyUI\execution.py", line 82, in get_output_data
return_values = map_node_over_list(obj, input_data_all, obj.FUNCTION, allow_interrupt=True)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:__ai_env\comfyui\ComfyUI_windows_portable\ComfyUI\execution.py", line 75, in map_node_over_list
results.append(getattr(obj, func)(**slice_dict(input_data_all, i)))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:__ai_env\comfyui\ComfyUI_windows_portable\ComfyUI\nodes.py", line 814, in apply_controlnet
c_net = control_net.copy().set_cond_hint(control_hint, strength, (start_percent, end_percent))
^^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'copy'

[brundlesprout]

check your unet loader, first should be stage_b, second should be stage_c

[MoonMoon82]

@brundlesprout The controlnet node should be placed into the positive conditioning of the stage_c sampler. But exactly this produces this error.
I already posted it in #2785 but nobody cared yet :(

[axel578]

It would increase stable cascade usage a lot if control net model was supported

[Matthaeus07]

This bugs me out too. If someone wants the (not working) workflow here.
However, this is how it should work according to the documentation.

[SSA4]

Still waiting for a fix of this error

[MoonMoon82]

At least the canny controlnet works successfully!

[Matthaeus07]

At least the canny controlnet works successfully!

How did you get it to work? May you share your workflow?

[MoonMoon82]

@Matthaeus07 Using canny controlnet works just like any other model. Just make sure that it is only connected to stage_c sampler.

SuperResolution also works now!
But to use it, it's neccessary to use the new "StableCascade_SuperResolutionControlnet" node as kind of preprocessor and connect stage_c and stage_b latent outputs to each sampler.

[Tener]

Would any of you mind sharing example workflow for controlnet + stable cascade?

[Matthaeus07]

Just got it working. Here is the sc-canny-workflow.json

[EtienneExalgo]

Just got it working. Here is the sc-canny-workflow.json

Hi Mattaeus07, thanks !

Can you explain a bit more ? Your workflow fires the same error for me : "Error occurred when executing ControlNetApplyAdvanced:

'NoneType' object has no attribute 'copy'"

[Matthaeus07]

Just got it working. Here is the sc-canny-workflow.json

Hi Mattaeus07, thanks !

Can you explain a bit more ? Your workflow fires the same error for me : "Error occurred when executing ControlNetApplyAdvanced:

'NoneType' object has no attribute 'copy'"

I am sorry that it does not work for you. Try updating ComfyUI. I hope that will fix the problem for you!

[defensezone]

Just got it working. Here is the sc-canny-workflow.json

Hi Mattaeus07, thanks !
Can you explain a bit more ? Your workflow fires the same error for me : "Error occurred when executing ControlNetApplyAdvanced:
'NoneType' object has no attribute 'copy'"

I am sorry that it does not work for you. Try updating ComfyUI. I hope that will fix the problem for you!

canny works, but super_resolution gives an error:
`Error occurred when executing ControlNetApply:

'NoneType' object has no attribute 'copy'

File "w:\GIT\ComfyUI_windows_portable\ComfyUI\execution.py", line 152, in recursive_execute
output_data, output_ui = get_output_data(obj, input_data_all)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "w:\GIT\ComfyUI_windows_portable\ComfyUI\execution.py", line 82, in get_output_data
return_values = map_node_over_list(obj, input_data_all, obj.FUNCTION, allow_interrupt=True)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "w:\GIT\ComfyUI_windows_portable\ComfyUI\execution.py", line 75, in map_node_over_list
results.append(getattr(obj, func)(**slice_dict(input_data_all, i)))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "w:\GIT\ComfyUI_windows_portable\ComfyUI\nodes.py", line 770, in apply_controlnet
c_net = control_net.copy().set_cond_hint(control_hint, strength)
^^^^^^^^^^^^^^^^`

[rivo]

'NoneType' object has no attribute 'copy'

Try updating ComfyUI. I hope that will fix the problem for you!

@EtienneExalgo I had exactly the same problem and updating ComfyUI to the latest version fixed it for me.

[eray124]

how can i fix it? Its same on my macbook and pc.