“Stable diffusion model failed to load” on Macbook air M2

[zzzshide]

Can anyone help? I am on my Macbook air M2 with MacOS14.5, when running webui.sh, could open the browser interface, but cannot load the model, and terminal shows as below, and my model is "v1-5-pruned-emaonly.ckpt".

Stable diffusion model failed to load
*** Error completing request
*** Arguments: ('task(az7xp6n0tlnahcl)', <gradio.routes.Request object at 0x16d4a50f0>, 'a dog', '', [], 1, 1, 7, 512, 512, False, 0.7, 2, 'Latent', 0, 0, 0, 'Use same checkpoint', 'Use same sampler', 'Use same scheduler', '', '', [], 0, 20, 'DPM++ 2M', 'Automatic', False, '', 0.8, -1, False, -1, 0, 0, 0, False, False, 'positive', 'comma', 0, False, False, 'start', '', 1, '', [], 0, '', [], 0, '', [], True, False, False, False, False, False, False, 0, False) {}
Traceback (most recent call last):
File "/Users/willjin/stable-diffusion-webui/modules/call_queue.py", line 57, in f
res = list(func(*args, **kwargs))
File "/Users/willjin/stable-diffusion-webui/modules/call_queue.py", line 36, in f
res = func(*args, **kwargs)
File "/Users/willjin/stable-diffusion-webui/modules/txt2img.py", line 109, in txt2img
processed = processing.process_images(p)
File "/Users/willjin/stable-diffusion-webui/modules/processing.py", line 832, in process_images
sd_models.reload_model_weights()
File "/Users/willjin/stable-diffusion-webui/modules/sd_models.py", line 860, in reload_model_weights
sd_model = reuse_model_from_already_loaded(sd_model, checkpoint_info, timer)
File "/Users/willjin/stable-diffusion-webui/modules/sd_models.py", line 793, in reuse_model_from_already_loaded
send_model_to_cpu(sd_model)
File "/Users/willjin/stable-diffusion-webui/modules/sd_models.py", line 662, in send_model_to_cpu
if m.lowvram:
AttributeError: 'NoneType' object has no attribute 'lowvram'

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