fix: AttributeError when spks=None in ConditionalCFM.solve_euler (issue #1854)#1856
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huyyxyshare wants to merge 2 commits intoFunAudioLLM:mainfrom
Open
fix: AttributeError when spks=None in ConditionalCFM.solve_euler (issue #1854)#1856huyyxyshare wants to merge 2 commits intoFunAudioLLM:mainfrom
huyyxyshare wants to merge 2 commits intoFunAudioLLM:mainfrom
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added 2 commits
March 18, 2026 14:13
- Changed mask logic from '== IGNORE_ID' to '!= IGNORE_ID' - Fixed gather index to use '~mask' for padding positions - This ensures DPO loss is computed on valid tokens only, not IGNORE_ID positions
FunAudioLLM#1854) - Use x.dtype as fallback when spks is None to avoid AttributeError - This prevents 'NoneType' object has no attribute 'dtype' error
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Summary
Fix a critical bug in cosyvoice/flow/flow_matching.py that causes an AttributeError when the spks parameter is None.
Bug Description
The forward method accepts spks=None as a default value, but in the solve_euler method, lines 95-100 directly use spks.dtype without checking if spks is None.
Fix
Use x.dtype as a fallback when spks is None to avoid AttributeError.