WanVideo Sampler 'WanRMSNorm' object has no attribute 'bias'

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
35/100
Issue type
Bug
Clarity
Needs clarification
Activity status
Quiet
Tech stack
python
Domain
machine-learning

Research direction

Start by reproducing the WanVideo Sampler error, “WanRMSNorm” object has no attribute “bias,” and capture the full traceback to identify where it occurs. The issue gives no file, reproduction steps, or expected behavior, so ask for those details before choosing a code location; done means the sampler runs without the error and the failure is covered by a regression check.

Written by the indexing model from the issue text.

Description

New issue happened on 2026-04-24, which was not exist the date before.

Dominant language
Python
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Forks
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Getting set up

This project ships no dev container, Dockerfile or contributing guide, so setting up is up to you: start from its README, and see our first-contribution guide for the general steps.

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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