Stable diffusion model failed to load,

Hello, please I need your help, I tried to install 3 versions of stable diffusion 1.4, 1.5, and 2.0 and yet I have the same error message ( Stable diffusion model failed to load, exiting ). Thank you in advance for your help.

loading stable diffusion model: AttributeError
Traceback (most recent call last):
File "D:\SDlocal\webui.py", line 74, in initialize
modules.sd_models.load_model()
File "D:\SDlocal\modules\sd_models.py", line 322, in load_model
sd_model = instantiate_from_config(sd_config.model)
File "D:\SDlocal\repositories\stable-diffusion-stability-ai\ldm\util.py", line 79, in instantiate_from_config
return get_obj_from_str(config["target"])(**config.get("params", dict()))
File "D:\SDlocal\repositories\stable-diffusion-stability-ai\ldm\models\diffusion\ddpm.py", line 563, in __init__
self.instantiate_cond_stage(cond_stage_config)
File "D:\SDlocal\repositories\stable-diffusion-stability-ai\ldm\models\diffusion\ddpm.py", line 630, in instantiate_cond_stage
model = instantiate_from_config(config)
File "D:\SDlocal\repositories\stable-diffusion-stability-ai\ldm\util.py", line 79, in instantiate_from_config
return get_obj_from_str(config["target"])(**config.get("params", dict()))
File "D:\SDlocal\repositories\stable-diffusion-stability-ai\ldm\modules\encoders\modules.py", line 100, in __init__
self.transformer = CLIPTextModel.from_pretrained(version)
File "D:\SDlocal\venv\lib\site-packages\transformers\modeling_utils.py", line 2006, in from_pretrained
loaded_state_dict_keys = [k for k in state_dict.keys()]
AttributeError: 'NoneType' object has no attribute 'keys'