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[GH-ISSUE #1465] [错误]: ModelPatchLoader #420

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opened 2026-10-31 22:12:43 +00:00 by bsakaguchi · 1 comment

bsakaguchi commented

2026-10-31 22:12:43 +00:00

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Originally created by @ne7359 on GitHub (Dec 8, 2025).
Original GitHub issue: https://github.com/Comfy-Org/desktop/issues/1465

App Version

ModelPatchLoader

cannot access local variable 'model' where it is not associated with a value

Expected Behavior

ComfyUI Error Report

Error Details

Node ID: 64
Node Type: ModelPatchLoader
Exception Type: UnboundLocalError
Exception Message: cannot access local variable 'model' where it is not associated with a value

Stack Trace

  File "/Applications/ComfyUI.app/Contents/Resources/ComfyUI/execution.py", line 510, in execute
    output_data, output_ui, has_subgraph, has_pending_tasks = await get_output_data(prompt_id, unique_id, obj, input_data_all, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, hidden_inputs=hidden_inputs)
                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

  File "/Applications/ComfyUI.app/Contents/Resources/ComfyUI/execution.py", line 324, in get_output_data
    return_values = await _async_map_node_over_list(prompt_id, unique_id, obj, input_data_all, obj.FUNCTION, allow_interrupt=True, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, hidden_inputs=hidden_inputs)
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

  File "/Applications/ComfyUI.app/Contents/Resources/ComfyUI/execution.py", line 298, in _async_map_node_over_list
    await process_inputs(input_dict, i)

  File "/Applications/ComfyUI.app/Contents/Resources/ComfyUI/execution.py", line 286, in process_inputs
    result = f(**inputs)
             ^^^^^^^^^^^

  File "/Applications/ComfyUI.app/Contents/Resources/ComfyUI/comfy_extras/nodes_model_patch.py", line 215, in load_model_patch
    model.load_state_dict(sd)
    ^^^^^

System Information

ComfyUI Version: 0.3.76

Actual Behavior

Apple M4 Pro

Steps to Reproduce

macOS Tahoe. 版本26.2

Debug Logs

Browser Logs

No response

Settings JSON

No response

Other

No response

┆Issue is synchronized with this Notion page by Unito

Originally created by @ne7359 on GitHub (Dec 8, 2025). Original GitHub issue: https://github.com/Comfy-Org/desktop/issues/1465 ### App Version ## ModelPatchLoader cannot access local variable 'model' where it is not associated with a value ### Expected Behavior # ComfyUI Error Report ## Error Details - **Node ID:** 64 - **Node Type:** ModelPatchLoader - **Exception Type:** UnboundLocalError - **Exception Message:** cannot access local variable 'model' where it is not associated with a value ## Stack Trace ``` File "/Applications/ComfyUI.app/Contents/Resources/ComfyUI/execution.py", line 510, in execute output_data, output_ui, has_subgraph, has_pending_tasks = await get_output_data(prompt_id, unique_id, obj, input_data_all, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, hidden_inputs=hidden_inputs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/Applications/ComfyUI.app/Contents/Resources/ComfyUI/execution.py", line 324, in get_output_data return_values = await _async_map_node_over_list(prompt_id, unique_id, obj, input_data_all, obj.FUNCTION, allow_interrupt=True, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, hidden_inputs=hidden_inputs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/Applications/ComfyUI.app/Contents/Resources/ComfyUI/execution.py", line 298, in _async_map_node_over_list await process_inputs(input_dict, i) File "/Applications/ComfyUI.app/Contents/Resources/ComfyUI/execution.py", line 286, in process_inputs result = f(**inputs) ^^^^^^^^^^^ File "/Applications/ComfyUI.app/Contents/Resources/ComfyUI/comfy_extras/nodes_model_patch.py", line 215, in load_model_patch model.load_state_dict(sd) ^^^^^ ``` ## System Information - **ComfyUI Version:** 0.3.76 ### Actual Behavior ## Apple M4 Pro ### Steps to Reproduce ## macOS Tahoe. 版本26.2 ### Debug Logs ```powershell ``` ### Browser Logs _No response_ ### Settings JSON _No response_ ### Other _No response_ ┆Issue is synchronized with this [Notion page](https://www.notion.so/Issue-1465-ModelPatchLoader-2c36d73d365081719bb3dbf9db917465) by [Unito](https://www.unito.io)

bsakaguchi

2026-10-31 22:12:43 +00:00

closed this issue
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bsakaguchi commented

2026-10-31 22:12:44 +00:00

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@dosubot[bot] commented on GitHub (Dec 8, 2025):

Hi @ne7359! I'm Dosu and I’m helping the desktop team.

This error happens because the ModelPatchLoader node is trying to use a local variable model before it has been assigned a value. This usually means something went wrong earlier in the node's logic—often due to missing or invalid inputs, a failed model load, or a dependency problem.

The ModelPatchLoader node and its code (nodes_model_patch.py) aren't part of the main ComfyUI desktop repo, so this is almost certainly a custom node issue. On macOS, these problems are often caused by missing dependencies, virtual environment issues, or hardware acceleration incompatibilities (like MPS/CoreML) [source].

Here’s what you can do:

Disable all custom nodes and restart ComfyUI. If the error disappears, it’s a custom node problem [source].
Re-enable custom nodes one by one (or in halves) to find which one causes the error.
For the problematic node, make sure all its dependencies are installed in your virtual environment (run pip install -r requirements.txt in each custom node’s folder).
If you’re using hardware acceleration, try forcing CPU mode to rule out MPS/CoreML issues.
If nothing works, a clean uninstall and reinstall of ComfyUI desktop can help clear out environment problems [source].

Also, check comfyui.log and main.log for more details—they might point to a missing dependency or another root cause.

To reply, just mention @dosu.

Share context across your team and agents. Try Dosu.

@dosubot[bot] commented on GitHub (Dec 8, 2025):  Hi @ne7359! I'm [Dosu](https://go.dosu.dev/dosubot) and I’m helping the desktop team.  This error happens because the ModelPatchLoader node is trying to use a local variable model before it has been assigned a value. This usually means something went wrong earlier in the node's logic—often due to missing or invalid inputs, a failed model load, or a dependency problem. The ModelPatchLoader node and its code (nodes_model_patch.py) aren't part of the main ComfyUI desktop repo, so this is almost certainly a custom node issue. On macOS, these problems are often caused by missing dependencies, virtual environment issues, or hardware acceleration incompatibilities (like MPS/CoreML) [[source]](https://github.com/Comfy-Org/desktop/issues/1356). Here’s what you can do: 1. Disable all custom nodes and restart ComfyUI. If the error disappears, it’s a custom node problem [[source]](https://docs.comfy.org/troubleshooting/custom-node-issues). 2. Re-enable custom nodes one by one (or in halves) to find which one causes the error. 3. For the problematic node, make sure all its dependencies are installed in your virtual environment (run pip install -r requirements.txt in each custom node’s folder). 4. If you’re using hardware acceleration, try forcing CPU mode to rule out MPS/CoreML issues. 5. If nothing works, a clean uninstall and reinstall of ComfyUI desktop can help clear out environment problems [[source]](https://github.com/Comfy-Org/desktop/issues/1356). Also, check comfyui.log and main.log for more details—they might point to a missing dependency or another root cause.  *To reply, just mention [@dosu](https://go.dosu.dev/dosubot?utm_source=github&utm_medium=bot-comment&utm_campaign=github-comment-footer-20260415&utm_content=reply-with-mention&utm_term=Comfy-Org%2Fdesktop).* --- Share context across your team and agents. Try [Dosu](https://dosu.dev?utm_source=github&utm_medium=bot-comment&utm_campaign=github-comment-footer-20260415&utm_content=knowledge-infrastructure-tagline&utm_term=Comfy-Org%2Fdesktop). 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bsakaguchi referenced this issue

2026-10-31 22:17:31 +00:00

[PR #420] [MERGED] Limit access to core settings #858

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