From c033e4adfb96ffa608ad414390b07c9fdedad469 Mon Sep 17 00:00:00 2001 From: whning Date: Fri, 19 Jun 2026 14:42:23 +0800 Subject: [PATCH] Fix #13487 --- src/diffusers/loaders/lora_pipeline.py | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/src/diffusers/loaders/lora_pipeline.py b/src/diffusers/loaders/lora_pipeline.py index 0abeba91e983..eebb640c4c80 100644 --- a/src/diffusers/loaders/lora_pipeline.py +++ b/src/diffusers/loaders/lora_pipeline.py @@ -5914,9 +5914,19 @@ def load_lora_weights( if not is_correct_format: raise ValueError("Invalid LoRA checkpoint. Make sure all LoRA param names contain `'lora'` substring.") + try: + transformer = getattr(self, self.transformer_name) if not hasattr(self, "transformer") else self.transformer + except AttributeError: + logger.warning( + f"Could not load LoRA weights into {type(self).__name__}. " + f"The `{self.transformer_name}` attribute is not available on this sub-pipeline. " + "Load LoRA weights on the main pipeline instance instead." + ) + return + self.load_lora_into_transformer( state_dict, - transformer=getattr(self, self.transformer_name) if not hasattr(self, "transformer") else self.transformer, + transformer=transformer, adapter_name=adapter_name, metadata=metadata, _pipeline=self,