Comfyui SANA installation

### Your question

having issues while running Nvidia SANA model from comfyui

Missing VAE keys ['encoder.project_in.weight', 'encoder.project_in.bias', 'encoder.stages.0.0.conv1.conv.weight', 'encoder.stages.0.0.conv1.conv.bias', 'encoder.stages.0.0.conv2.conv.weight', 'encoder.stages.0.0.conv2.norm.weight', 'encoder.stages.0.0.conv2.norm.bias', 'encoder.stages.0.1.conv1.conv.weight', 'encoder.stages.0.1.conv1.conv.bias', 'encoder.stages.0.1.conv2.conv.weight', 'encoder.stages.0.1.conv2.norm.weight', 'encoder.stages.0.1.conv2.norm.bias', 'encoder.stages.0.2.main.weight', 'encoder.stages.0.2.main.bias', 'encoder.stages.1.0.conv1.conv.weight', 'encoder.stages.1.0.conv1.conv.bias', 'encoder.stages.1.0.conv2.conv.weight', 'encoder.stages.1.0.conv2.norm.weight', 'encoder.stages.1.0.conv2.norm.bias', 'encoder.stages.1.1.conv1.conv.weight', 'encoder.stages.1.1.conv1.conv.bias', 'encoder.stages.1.1.conv2.conv.weight', 'encoder.stages.1.1.conv2.norm.weight', 'encoder.stages.1.1.conv2.norm.bias', 'encoder.stages.1.2.main.weight', 'encoder.stages.1.2.main.bias', 'encoder.stages.2.0.conv1.conv.weight', 'encoder.stages.2.0.conv1.conv.bias', 'encoder.stages.2.0.conv2.conv.weight', 'encoder.stages.2.0.conv2.norm.weight', 'encoder.stages.2.0.conv2.norm.bias', 'encoder.stages.2.1.conv1.conv.weight', 'encoder.stages.2.1.conv1.conv.bias', 'encoder.stages.2.1.conv2.conv.weight', 'encoder.stages.2.1.conv2.norm.weight', 'encoder.stages.2.1.conv2.norm.bias', 'encoder.stages.2.2.main.weight', 'encoder.stages.2.2.main.bias', 'encoder.stages.3.0.context_module.qkv.0.weight', 'encoder.stages.3.0.context_module.aggreg.0.0.weight', 'encoder.stages.3.0.context_module.aggreg.0.1.weight', 'encoder.stages.3.0.context_module.proj.0.weight', 'encoder.stages.3.0.context_module.proj.1.weight', 'encoder.stages.3.0.context_module.proj.1.bias', 'encoder.stages.3.0.local_module.inverted_conv.conv.weight', 'encoder.stages.3.0.local_module.inverted_conv.conv.bias', 'encoder.stages.3.0.local_module.depth_conv.conv.weight', 'encoder.stages.3.0.local_module.depth_conv.conv.bias', 'encoder.stages.3.0.local_module.point_conv.conv.weight', 'encoder.stages.3.0.local_module.point_conv.norm.weight', 'encoder.stages.3.0.local_module.point_conv.norm.bias', 'encoder.stages.3.1.context_module.qkv.0.weight', 'encoder.stages.3.1.context_module.aggreg.0.0.weight', 'encoder.stages.3.1.context_module.aggreg.0.1.weight', 'encoder.stages.3.1.context_module.proj.0.weight', 'encoder.stages.3.1.context_module.proj.1.weight', 'encoder.stages.3.1.context_module.proj.1.bias', 'encoder.stages.3.1.local_module.inverted_conv.conv.weight', 'encoder.stages.3.1.local_module.inverted_conv.conv.bias', 'encoder.stages.3.1.local_module.depth_conv.conv.weight', 'encoder.stages.3.1.local_module.depth_conv.conv.bias', 'encoder.stages.3.1.local_module.point_conv.conv.weight', 'encoder.stages.3.1.local_module.point_conv.norm.weight', 'encoder.stages.3.1.local_module.point_conv.norm.bias', 'encoder.stages.3.2.context_module.qkv.0.weight', 'encoder.stages.3.2.context_module.aggreg.0.0.weight', 'encoder.stages.3.2.context_module.aggreg.0.1.weight', 'encoder.stages.3.2.context_module.proj.0.weight', 'encoder.stages.3.2.context_module.proj.1.weight', 'encoder.stages.3.2.context_module.proj.1.bias', 'encoder.stages.3.2.local_module.inverted_conv.conv.weight', 'encoder.stages.3.2.local_module.inverted_conv.conv.bias', 'encoder.stages.3.2.local_module.depth_conv.conv.weight', 'encoder.stages.3.2.local_module.depth_conv.conv.bias', 'encoder.stages.3.2.local_module.point_conv.conv.weight', 'encoder.stages.3.2.local_module.point_conv.norm.weight', 'encoder.stages.3.2.local_module.point_conv.norm.bias', 'encoder.stages.3.3.main.weight', 'encoder.stages.3.3.main.bias', 'encoder.stages.4.0.context_module.qkv.0.weight', 'encoder.stages.4.0.context_module.aggreg.0.0.weight', 'encoder.stages.4.0.context_module.aggreg.0.1.weight', 'encoder.stages.4.0.context_module.proj.0.weight', 'encoder.stages.4.0.context_module.proj.1.weight', 'encoder.stages.4.0.context_module.proj.1.bias', 'encoder.stages.4.0.local_module.inverted_conv.conv.weight', 'encoder.stages.4.0.local_module.inverted_conv.conv.bias', 'encoder.stages.4.0.local_module.depth_conv.conv.weight', 'encoder.stages.4.0.local_module.depth_conv.conv.bias', 'encoder.stages.4.0.local_module.point_conv.conv.weight', 'encoder.stages.4.0.local_module.point_conv.norm.weight', 'encoder.stages.4.0.local_module.point_conv.norm.bias', 'encoder.stages.4.1.context_module.qkv.0.weight', 'encoder.stages.4.1.context_module.aggreg.0.0.weight', 'encoder.stages.4.1.context_module.aggreg.0.1.weight', 'encoder.stages.4.1.context_module.proj.0.weight', 'encoder.stages.4.1.context_module.proj.1.weight', 'encoder.stages.4.1.context_module.proj.1.bias', 'encoder.stages.4.1.local_module.inverted_conv.conv.weight', 'encoder.stages.4.1.local_module.inverted_conv.conv.bias', 'encoder.stages.4.1.local_module.depth_conv.conv.weight', 'encoder.stages.4.1.local_module.depth_conv.conv.bias', 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'encoder.stages.5.0.context_module.qkv.0.weight', 'encoder.stages.5.0.context_module.aggreg.0.0.weight', 'encoder.stages.5.0.context_module.aggreg.0.1.weight', 'encoder.stages.5.0.context_module.proj.0.weight', 'encoder.stages.5.0.context_module.proj.1.weight', 'encoder.stages.5.0.context_module.proj.1.bias', 'encoder.stages.5.0.local_module.inverted_conv.conv.weight', 'encoder.stages.5.0.local_module.inverted_conv.conv.bias', 'encoder.stages.5.0.local_module.depth_conv.conv.weight', 'encoder.stages.5.0.local_module.depth_conv.conv.bias', 'encoder.stages.5.0.local_module.point_conv.conv.weight', 'encoder.stages.5.0.local_module.point_conv.norm.weight', 'encoder.stages.5.0.local_module.point_conv.norm.bias', 'encoder.stages.5.1.context_module.qkv.0.weight', 'encoder.stages.5.1.context_module.aggreg.0.0.weight', 'encoder.stages.5.1.context_module.aggreg.0.1.weight', 'encoder.stages.5.1.context_module.proj.0.weight', 'encoder.stages.5.1.context_module.proj.1.weight', 'encoder.stages.5.1.context_module.proj.1.bias', 'encoder.stages.5.1.local_module.inverted_conv.conv.weight', 'encoder.stages.5.1.local_module.inverted_conv.conv.bias', 'encoder.stages.5.1.local_module.depth_conv.conv.weight', 'encoder.stages.5.1.local_module.depth_conv.conv.bias', 'encoder.stages.5.1.local_module.point_conv.conv.weight', 'encoder.stages.5.1.local_module.point_conv.norm.weight', 'encoder.stages.5.1.local_module.point_conv.norm.bias', 'encoder.stages.5.2.context_module.qkv.0.weight', 'encoder.stages.5.2.context_module.aggreg.0.0.weight', 'encoder.stages.5.2.context_module.aggreg.0.1.weight', 'encoder.stages.5.2.context_module.proj.0.weight', 'encoder.stages.5.2.context_module.proj.1.weight', 'encoder.stages.5.2.context_module.proj.1.bias', 'encoder.stages.5.2.local_module.inverted_conv.conv.weight', 'encoder.stages.5.2.local_module.inverted_conv.conv.bias', 'encoder.stages.5.2.local_module.depth_conv.conv.weight', 'encoder.stages.5.2.local_module.depth_conv.conv.bias', 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'decoder.stages.1.0.main.conv.weight', 'decoder.stages.1.0.main.conv.bias', 'decoder.stages.1.1.conv1.conv.weight', 'decoder.stages.1.1.conv1.conv.bias', 'decoder.stages.1.1.conv2.conv.weight', 'decoder.stages.1.1.conv2.norm.weight', 'decoder.stages.1.1.conv2.norm.bias', 'decoder.stages.1.2.conv1.conv.weight', 'decoder.stages.1.2.conv1.conv.bias', 'decoder.stages.1.2.conv2.conv.weight', 'decoder.stages.1.2.conv2.norm.weight', 'decoder.stages.1.2.conv2.norm.bias', 'decoder.stages.1.3.conv1.conv.weight', 'decoder.stages.1.3.conv1.conv.bias', 'decoder.stages.1.3.conv2.conv.weight', 'decoder.stages.1.3.conv2.norm.weight', 'decoder.stages.1.3.conv2.norm.bias', 'decoder.stages.2.0.main.conv.weight', 'decoder.stages.2.0.main.conv.bias', 'decoder.stages.2.1.conv1.conv.weight', 'decoder.stages.2.1.conv1.conv.bias', 'decoder.stages.2.1.conv2.conv.weight', 'decoder.stages.2.1.conv2.norm.weight', 'decoder.stages.2.1.conv2.norm.bias', 'decoder.stages.2.2.conv1.conv.weight', 'decoder.stages.2.2.conv1.conv.bias', 'decoder.stages.2.2.conv2.conv.weight', 'decoder.stages.2.2.conv2.norm.weight', 'decoder.stages.2.2.conv2.norm.bias', 'decoder.stages.2.3.conv1.conv.weight', 'decoder.stages.2.3.conv1.conv.bias', 'decoder.stages.2.3.conv2.conv.weight', 'decoder.stages.2.3.conv2.norm.weight', 'decoder.stages.2.3.conv2.norm.bias', 'decoder.stages.3.0.main.conv.weight', 'decoder.stages.3.0.main.conv.bias', 'decoder.stages.3.1.context_module.qkv.0.weight', 'decoder.stages.3.1.context_module.aggreg.0.0.weight', 'decoder.stages.3.1.context_module.aggreg.0.1.weight', 'decoder.stages.3.1.context_module.proj.0.weight', 'decoder.stages.3.1.context_module.proj.1.weight', 'decoder.stages.3.1.context_module.proj.1.bias', 'decoder.stages.3.1.local_module.inverted_conv.conv.weight', 'decoder.stages.3.1.local_module.inverted_conv.conv.bias', 'decoder.stages.3.1.local_module.depth_conv.conv.weight', 'decoder.stages.3.1.local_module.depth_conv.conv.bias', 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'decoder.stages.3.3.context_module.aggreg.0.1.weight', 'decoder.stages.3.3.context_module.proj.0.weight', 'decoder.stages.3.3.context_module.proj.1.weight', 'decoder.stages.3.3.context_module.proj.1.bias', 'decoder.stages.3.3.local_module.inverted_conv.conv.weight', 'decoder.stages.3.3.local_module.inverted_conv.conv.bias', 'decoder.stages.3.3.local_module.depth_conv.conv.weight', 'decoder.stages.3.3.local_module.depth_conv.conv.bias', 'decoder.stages.3.3.local_module.point_conv.conv.weight', 'decoder.stages.3.3.local_module.point_conv.norm.weight', 'decoder.stages.3.3.local_module.point_conv.norm.bias', 'decoder.stages.4.0.main.conv.weight', 'decoder.stages.4.0.main.conv.bias', 'decoder.stages.4.1.context_module.qkv.0.weight', 'decoder.stages.4.1.context_module.aggreg.0.0.weight', 'decoder.stages.4.1.context_module.aggreg.0.1.weight', 'decoder.stages.4.1.context_module.proj.0.weight', 'decoder.stages.4.1.context_module.proj.1.weight', 'decoder.stages.4.1.context_module.proj.1.bias', 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'decoder.stages.4.2.local_module.point_conv.conv.weight', 'decoder.stages.4.2.local_module.point_conv.norm.weight', 'decoder.stages.4.2.local_module.point_conv.norm.bias', 'decoder.stages.4.3.context_module.qkv.0.weight', 'decoder.stages.4.3.context_module.aggreg.0.0.weight', 'decoder.stages.4.3.context_module.aggreg.0.1.weight', 'decoder.stages.4.3.context_module.proj.0.weight', 'decoder.stages.4.3.context_module.proj.1.weight', 'decoder.stages.4.3.context_module.proj.1.bias', 'decoder.stages.4.3.local_module.inverted_conv.conv.weight', 'decoder.stages.4.3.local_module.inverted_conv.conv.bias', 'decoder.stages.4.3.local_module.depth_conv.conv.weight', 'decoder.stages.4.3.local_module.depth_conv.conv.bias', 'decoder.stages.4.3.local_module.point_conv.conv.weight', 'decoder.stages.4.3.local_module.point_conv.norm.weight', 'decoder.stages.4.3.local_module.point_conv.norm.bias', 'decoder.stages.5.0.context_module.qkv.0.weight', 'decoder.stages.5.0.context_module.aggreg.0.0.weight', 'decoder.stages.5.0.context_module.aggreg.0.1.weight', 'decoder.stages.5.0.context_module.proj.0.weight', 'decoder.stages.5.0.context_module.proj.1.weight', 'decoder.stages.5.0.context_module.proj.1.bias', 'decoder.stages.5.0.local_module.inverted_conv.conv.weight', 'decoder.stages.5.0.local_module.inverted_conv.conv.bias', 'decoder.stages.5.0.local_module.depth_conv.conv.weight', 'decoder.stages.5.0.local_module.depth_conv.conv.bias', 'decoder.stages.5.0.local_module.point_conv.conv.weight', 'decoder.stages.5.0.local_module.point_conv.norm.weight', 'decoder.stages.5.0.local_module.point_conv.norm.bias', 'decoder.stages.5.1.context_module.qkv.0.weight', 'decoder.stages.5.1.context_module.aggreg.0.0.weight', 'decoder.stages.5.1.context_module.aggreg.0.1.weight', 'decoder.stages.5.1.context_module.proj.0.weight', 'decoder.stages.5.1.context_module.proj.1.weight', 'decoder.stages.5.1.context_module.proj.1.bias', 'decoder.stages.5.1.local_module.inverted_conv.conv.weight', 'decoder.stages.5.1.local_module.inverted_conv.conv.bias', 'decoder.stages.5.1.local_module.depth_conv.conv.weight', 'decoder.stages.5.1.local_module.depth_conv.conv.bias', 'decoder.stages.5.1.local_module.point_conv.conv.weight', 'decoder.stages.5.1.local_module.point_conv.norm.weight', 'decoder.stages.5.1.local_module.point_conv.norm.bias', 'decoder.stages.5.2.context_module.qkv.0.weight', 'decoder.stages.5.2.context_module.aggreg.0.0.weight', 'decoder.stages.5.2.context_module.aggreg.0.1.weight', 'decoder.stages.5.2.context_module.proj.0.weight', 'decoder.stages.5.2.context_module.proj.1.weight', 'decoder.stages.5.2.context_module.proj.1.bias', 'decoder.stages.5.2.local_module.inverted_conv.conv.weight', 'decoder.stages.5.2.local_module.inverted_conv.conv.bias', 'decoder.stages.5.2.local_module.depth_conv.conv.weight', 'decoder.stages.5.2.local_module.depth_conv.conv.bias', 'decoder.stages.5.2.local_module.point_conv.conv.weight', 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Leftover VAE keys ['encoder.conv_in.bias', 'encoder.conv_in.weight', 'encoder.conv_out.bias', 'encoder.conv_out.weight', 'encoder.down_blocks.0.0.conv1.bias', 'encoder.down_blocks.0.0.conv1.weight', 'encoder.down_blocks.0.0.conv2.weight', 'encoder.down_blocks.0.0.norm.bias', 'encoder.down_blocks.0.0.norm.weight', 'encoder.down_blocks.0.1.conv1.bias', 'encoder.down_blocks.0.1.conv1.weight', 'encoder.down_blocks.0.1.conv2.weight', 'encoder.down_blocks.0.1.norm.bias', 'encoder.down_blocks.0.1.norm.weight', 'encoder.down_blocks.0.2.conv.bias', 'encoder.down_blocks.0.2.conv.weight', 'encoder.down_blocks.1.0.conv1.bias', 'encoder.down_blocks.1.0.conv1.weight', 'encoder.down_blocks.1.0.conv2.weight', 'encoder.down_blocks.1.0.norm.bias', 'encoder.down_blocks.1.0.norm.weight', 'encoder.down_blocks.1.1.conv1.bias', 'encoder.down_blocks.1.1.conv1.weight', 'encoder.down_blocks.1.1.conv2.weight', 'encoder.down_blocks.1.1.norm.bias', 'encoder.down_blocks.1.1.norm.weight', 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Unused kwargs: ['_load_in_4bit', '_load_in_8bit', 'quant_method']. These kwargs are not used in .
!!! Exception during processing !!! No package metadata was found for bitsandbytes
Traceback (most recent call last):
File "importlib\metadata\__init__.py", line 397, in from_name
StopIteration

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "H:\ComfyUI_windows_portable_nvidia_2\ComfyUI_windows_portable\ComfyUI\execution.py", line 328, in execute
output_data, output_ui, has_subgraph = get_output_data(obj, input_data_all, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "H:\ComfyUI_windows_portable_nvidia_2\ComfyUI_windows_portable\ComfyUI\execution.py", line 203, in get_output_data
return_values = _map_node_over_list(obj, input_data_all, obj.FUNCTION, allow_interrupt=True, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "H:\ComfyUI_windows_portable_nvidia_2\ComfyUI_windows_portable\ComfyUI\execution.py", line 174, in _map_node_over_list
process_inputs(input_dict, i)
File "H:\ComfyUI_windows_portable_nvidia_2\ComfyUI_windows_portable\ComfyUI\execution.py", line 163, in process_inputs
results.append(getattr(obj, func)(**inputs))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "H:\ComfyUI_windows_portable_nvidia_2\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI_ExtraModels\Gemma\nodes.py", line 67, in load_model
text_encoder_model = AutoModelForCausalLM.from_pretrained(model_name, torch_dtype=dtype)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "H:\ComfyUI_windows_portable_nvidia_2\ComfyUI_windows_portable\python_embeded\Lib\site-packages\transformers\models\auto\auto_factory.py", line 564, in from_pretrained
return model_class.from_pretrained(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "H:\ComfyUI_windows_portable_nvidia_2\ComfyUI_windows_portable\python_embeded\Lib\site-packages\transformers\modeling_utils.py", line 3659, in from_pretrained
config.quantization_config = AutoHfQuantizer.merge_quantization_configs(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "H:\ComfyUI_windows_portable_nvidia_2\ComfyUI_windows_portable\python_embeded\Lib\site-packages\transformers\quantizers\auto.py", line 173, in merge_quantization_configs
quantization_config = AutoQuantizationConfig.from_dict(quantization_config)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "H:\ComfyUI_windows_portable_nvidia_2\ComfyUI_windows_portable\python_embeded\Lib\site-packages\transformers\quantizers\auto.py", line 103, in from_dict
return target_cls.from_dict(quantization_config_dict)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "H:\ComfyUI_windows_portable_nvidia_2\ComfyUI_windows_portable\python_embeded\Lib\site-packages\transformers\utils\quantization_config.py", line 102, in from_dict
config = cls(**config_dict)
^^^^^^^^^^^^^^^^^^
File "H:\ComfyUI_windows_portable_nvidia_2\ComfyUI_windows_portable\python_embeded\Lib\site-packages\transformers\utils\quantization_config.py", line 417, in __init__
self.post_init()
File "H:\ComfyUI_windows_portable_nvidia_2\ComfyUI_windows_portable\python_embeded\Lib\site-packages\transformers\utils\quantization_config.py", line 475, in post_init
if self.load_in_4bit and not version.parse(importlib.metadata.version("bitsandbytes")) >= version.parse(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "importlib\metadata\__init__.py", line 889, in version
File "importlib\metadata\__init__.py", line 862, in distribution
File "importlib\metadata\__init__.py", line 399, in from_name
importlib.metadata.PackageNotFoundError: No package metadata was found for bitsandbytes

Prompt executed in 4.15 seconds
got prompt
Unused kwargs: ['_load_in_4bit', '_load_in_8bit', 'quant_method']. These kwargs are not used in .
!!! Exception during processing !!! No package metadata was found for bitsandbytes
Traceback (most recent call last):
File "importlib\metadata\__init__.py", line 397, in from_name
StopIteration

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "H:\ComfyUI_windows_portable_nvidia_2\ComfyUI_windows_portable\ComfyUI\execution.py", line 328, in execute
output_data, output_ui, has_subgraph = get_output_data(obj, input_data_all, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "H:\ComfyUI_windows_portable_nvidia_2\ComfyUI_windows_portable\ComfyUI\execution.py", line 203, in get_output_data
return_values = _map_node_over_list(obj, input_data_all, obj.FUNCTION, allow_interrupt=True, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "H:\ComfyUI_windows_portable_nvidia_2\ComfyUI_windows_portable\ComfyUI\execution.py", line 174, in _map_node_over_list
process_inputs(input_dict, i)
File "H:\ComfyUI_windows_portable_nvidia_2\ComfyUI_windows_portable\ComfyUI\execution.py", line 163, in process_inputs
results.append(getattr(obj, func)(**inputs))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "H:\ComfyUI_windows_portable_nvidia_2\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI_ExtraModels\Gemma\nodes.py", line 67, in load_model
text_encoder_model = AutoModelForCausalLM.from_pretrained(model_name, torch_dtype=dtype)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "H:\ComfyUI_windows_portable_nvidia_2\ComfyUI_windows_portable\python_embeded\Lib\site-packages\transformers\models\auto\auto_factory.py", line 564, in from_pretrained
return model_class.from_pretrained(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "H:\ComfyUI_windows_portable_nvidia_2\ComfyUI_windows_portable\python_embeded\Lib\site-packages\transformers\modeling_utils.py", line 3659, in from_pretrained
config.quantization_config = AutoHfQuantizer.merge_quantization_configs(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "H:\ComfyUI_windows_portable_nvidia_2\ComfyUI_windows_portable\python_embeded\Lib\site-packages\transformers\quantizers\auto.py", line 173, in merge_quantization_configs
quantization_config = AutoQuantizationConfig.from_dict(quantization_config)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "H:\ComfyUI_windows_portable_nvidia_2\ComfyUI_windows_portable\python_embeded\Lib\site-packages\transformers\quantizers\auto.py", line 103, in from_dict
return target_cls.from_dict(quantization_config_dict)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "H:\ComfyUI_windows_portable_nvidia_2\ComfyUI_windows_portable\python_embeded\Lib\site-packages\transformers\utils\quantization_config.py", line 102, in from_dict
config = cls(**config_dict)
^^^^^^^^^^^^^^^^^^
File "H:\ComfyUI_windows_portable_nvidia_2\ComfyUI_windows_portable\python_embeded\Lib\site-packages\transformers\utils\quantization_config.py", line 417, in __init__
self.post_init()
File "H:\ComfyUI_windows_portable_nvidia_2\ComfyUI_windows_portable\python_embeded\Lib\site-packages\transformers\utils\quantization_config.py", line 475, in post_init
if self.load_in_4bit and not version.parse(importlib.metadata.version("bitsandbytes")) >= version.parse(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "importlib\metadata\__init__.py", line 889, in version
File "importlib\metadata\__init__.py", line 862, in distribution
File "importlib\metadata\__init__.py", line 399, in from_name
importlib.metadata.PackageNotFoundError: No package metadata was found for bitsandbytes

Prompt executed in 2.61 seconds

### Logs

```powershell

```

### Other

_No response_