lllyasviel / lllyasviel/ControlNet
"ValueError: ControlNet needs to be passed if loading from ControlNet pipeline." - even though list of ControlNets are passed
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Description
`ValueError: ControlNet needs to be passed if loading from ControlNet pipeline.`
The above error only occurs when trying to pass multiple controlnets as a list to `StableDiffusionControlNetPipeline.from_single_file` like so:
```python
pipe = StableDiffusionControlNetPipeline.from_single_file(
"./model.safetensors",
controlnet=[cn_openpose, cn_canny]
```
A single controlnet works as expected
[Reproduction notebook link](https://colab.research.google.com/drive/1CnevTpaMBv-DbFlMhyjc0yjkxaX_238a?usp=sharing)
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start at StableDiffusionControlNetPipeline.from_single_file and reproduce the failure with the linked Colab notebook using a list of two ControlNets. Trace why the list is rejected, then verify that multiple ControlNets load successfully while the existing single-ControlNet case still works.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- machine-learning
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100