[Bug]: AttributeError: 'NoneType' object has no attribute '_id'

[iurysouzatx]

Is there an existing issue for this?

• I have searched the existing issues and checked the recent builds/commits of both this extension and the webui

What happened?

Can't even launch the WebUI when ControlNet is installed.
I updated the ControlNet and that's it.

Steps to reproduce the problem

Just open the WebUI

What should have happened?

The WebUI started normally.

Commit where the problem happens

webui: 5ef669de080814067961f28357256e8fe27544f4
controlnet: e67e017

What browsers do you use to access the UI ?

Mozilla Firefox

Command Line Arguments

--xformers

List of enabled extensions

Pixel Art

Console logs

*** Error calling: E:\AI\SD\webui\extensions\sd-webui-controlnet\scripts\controlnet.py/ui
    Traceback (most recent call last):
      File "E:\AI\SD\webui\modules\scripts.py", line 402, in wrap_call
        return func(*args, **kwargs)
      File "E:\AI\SD\webui\extensions\sd-webui-controlnet\scripts\controlnet.py", line 288, in ui
        group, state = self.uigroup(f"ControlNet-{i}", is_img2img, elem_id_tabname)
      File "E:\AI\SD\webui\extensions\sd-webui-controlnet\scripts\controlnet.py", line 268, in uigroup
        group.register_callbacks(is_img2img)
      File "E:\AI\SD\webui\extensions\sd-webui-controlnet\scripts\controlnet_ui\controlnet_ui_group.py", line 820, in register_callbacks
        self.preset_panel.register_callbacks(
      File "E:\AI\SD\webui\extensions\sd-webui-controlnet\scripts\controlnet_ui\preset.py", line 172, in register_callbacks
        getattr(element, action)(
      File "E:\AI\SD\system\python\lib\site-packages\gradio\events.py", line 140, in __call__
        dep, dep_index = self.trigger.set_event_trigger(
      File "E:\AI\SD\system\python\lib\site-packages\gradio\blocks.py", line 286, in set_event_trigger
        "inputs": [block._id for block in inputs],
      File "E:\AI\SD\system\python\lib\site-packages\gradio\blocks.py", line 286, in <listcomp>
        "inputs": [block._id for block in inputs],
    AttributeError: 'NoneType' object has no attribute '_id'

---
*** Error calling: E:\AI\SD\webui\extensions\sd-webui-controlnet\scripts\controlnet.py/ui
    Traceback (most recent call last):
      File "E:\AI\SD\webui\modules\scripts.py", line 402, in wrap_call
        return func(*args, **kwargs)
      File "E:\AI\SD\webui\extensions\sd-webui-controlnet\scripts\controlnet.py", line 288, in ui
        group, state = self.uigroup(f"ControlNet-{i}", is_img2img, elem_id_tabname)
      File "E:\AI\SD\webui\extensions\sd-webui-controlnet\scripts\controlnet.py", line 268, in uigroup
        group.register_callbacks(is_img2img)
      File "E:\AI\SD\webui\extensions\sd-webui-controlnet\scripts\controlnet_ui\controlnet_ui_group.py", line 820, in register_callbacks
        self.preset_panel.register_callbacks(
      File "E:\AI\SD\webui\extensions\sd-webui-controlnet\scripts\controlnet_ui\preset.py", line 172, in register_callbacks
        getattr(element, action)(
      File "E:\AI\SD\system\python\lib\site-packages\gradio\events.py", line 140, in __call__
        dep, dep_index = self.trigger.set_event_trigger(
      File "E:\AI\SD\system\python\lib\site-packages\gradio\blocks.py", line 286, in set_event_trigger
        "inputs": [block._id for block in inputs],
      File "E:\AI\SD\system\python\lib\site-packages\gradio\blocks.py", line 286, in <listcomp>
        "inputs": [block._id for block in inputs],
    AttributeError: 'NoneType' object has no attribute '_id'

---

Additional information

No response

[Guillaume-Fgt]

in your stable-diffusion-webui\extensions\sd-webui-controlnet folder, do you have a presets folder? Is it empty? If not, try to delete this folder and reload the webui.

[iurysouzatx]

in your stable-diffusion-webui\extensions\sd-webui-controlnet folder, do you have a presets folder? Is it empty? If not, try to delete this folder and reload the webui.

Nothing on presets folder because I removed controlnet and tried to reinstall again, same problem.

[PeterTF656]

same issue here

[iurysouzatx]

I don't know what caused this, but a new fresh install of SD got it to work again :/

[PeterTF656]

I don't know what caused this, but a new fresh install of SD got it to work again :/

I tried a lot of fixes, but none worked. Finally I had to reinstall as well. Took me half a day... But I can make my waifus again now, so overall not bad...

[Munichschntz]

Delete your ui-config.json and config.json files.

AUTO1111 will complain the files don't exist on starting the server; don't worry, it's just a warning. You can recreate them by going to Settings and clicking "Apply settings"

Hopefully this saves others from having to completely rebuild their install.

[CurtisDS]

For me it was the "txt2img/img2img UI item order" setting (Settings > User Interface). If you have changed it at all this extension throws all those errors on start up. Very annoying as I like having Scripts at the top of my UI.

[CurtisDS]

@huchenlei This issue is still happening on the latest commit if I alter the order of the UI. You marked this as closed, Was it supposed to have been fixed?

[huchenlei]

Please follow instructions in this comment:
#2136 (comment)

[CurtisDS]

That doesn't fix the issue. See #2136 (comment)
As soon as I change the UI order back to the way I like it (using the built in setting of Automatic1111) the error occurs again.

It appears that Control Net is assuming the UI will have a specific structure but because the order of the UI was changed it leads to the gradio error. I don't mean to be pushy but this is a repeatable and narrow issue with the extension where it does not support a built in setting of Automatic1111 so I think this issue is deserving of a proper fix.

[YuLinkun]

I print the list inputs, and found one of the list is empty, so I repair it by change [block._id for block in inputs] to [block._id for block in inputs if block is not None]. It works for me.