[Bug]: WebUI crashes when changing model

[ludrol]

Is there an existing issue for this?

• [X] I have searched the existing issues and checked the recent builds/commits

What happened?

when changing model after I generated image the trackback is:

Traceback (most recent call last):
  File "E:\stableDiffiusion\stable-diffusion-webui\venv\lib\site-packages\gradio\routes.py", line 284, in run_predict
    output = await app.blocks.process_api(
  File "E:\stableDiffiusion\stable-diffusion-webui\venv\lib\site-packages\gradio\blocks.py", line 982, in process_api
    result = await self.call_function(fn_index, inputs, iterator)
  File "E:\stableDiffiusion\stable-diffusion-webui\venv\lib\site-packages\gradio\blocks.py", line 824, in call_function
    prediction = await anyio.to_thread.run_sync(
  File "E:\stableDiffiusion\stable-diffusion-webui\venv\lib\site-packages\anyio\to_thread.py", line 31, in run_sync
    return await get_asynclib().run_sync_in_worker_thread(
  File "E:\stableDiffiusion\stable-diffusion-webui\venv\lib\site-packages\anyio\_backends\_asyncio.py", line 937, in run_sync_in_worker_thread
    return await future
  File "E:\stableDiffiusion\stable-diffusion-webui\venv\lib\site-packages\anyio\_backends\_asyncio.py", line 867, in run    result = context.run(func, *args)
  File "E:\stableDiffiusion\stable-diffusion-webui\modules\ui.py", line 1618, in <lambda>
    fn=lambda value, k=k: run_settings_single(value, key=k),
  File "E:\stableDiffiusion\stable-diffusion-webui\modules\ui.py", line 1459, in run_settings_single
    if not opts.set(key, value):
  File "E:\stableDiffiusion\stable-diffusion-webui\modules\shared.py", line 473, in set
    self.data_labels[key].onchange()
  File "E:\stableDiffiusion\stable-diffusion-webui\modules\call_queue.py", line 15, in f
    res = func(*args, **kwargs)
  File "E:\stableDiffiusion\stable-diffusion-webui\webui.py", line 63, in <lambda>
    shared.opts.onchange("sd_model_checkpoint", wrap_queued_call(lambda: modules.sd_models.reload_model_weights()))
  File "E:\stableDiffiusion\stable-diffusion-webui\modules\sd_models.py", line 302, in reload_model_weights
    load_model_weights(sd_model, checkpoint_info)
  File "E:\stableDiffiusion\stable-diffusion-webui\modules\sd_models.py", line 191, in load_model_weights
    sd = read_state_dict(checkpoint_file)
  File "E:\stableDiffiusion\stable-diffusion-webui\modules\sd_models.py", line 173, in read_state_dict
    sd = get_state_dict_from_checkpoint(pl_sd)
  File "E:\stableDiffiusion\stable-diffusion-webui\modules\sd_models.py", line 147, in get_state_dict_from_checkpoint
    pl_sd = pl_sd.pop("state_dict", pl_sd)
AttributeError: 'NoneType' object has no attribute 'pop'

Steps to reproduce the problem

1. Lunch webui.bat
2. generate image with any model
3. change model to another one
4. webui crashes

What should have happened?

it shouldn't crash

Commit where the problem happens

44c46f0ed395967cd3830dd481a2db759fda5b3b

What platforms do you use to access UI ?

Windows

What browsers do you use to access the UI ?

Mozilla Firefox

Command Line Arguments

No response

Additional information, context and logs

` Traceback (most recent call last): File "E:\stableDiffiusion\stable-diffusion-webui\venv\lib\site-packages\gradio\routes.py", line 284, in run_predict output = await app.blocks.process_api( File "E:\stableDiffiusion\stable-diffusion-webui\venv\lib\site-packages\gradio\blocks.py", line 982, in process_api result = await self.call_function(fn_index, inputs, iterator) File "E:\stableDiffiusion\stable-diffusion-webui\venv\lib\site-packages\gradio\blocks.py", line 824, in call_function prediction = await anyio.to_thread.run_sync( File "E:\stableDiffiusion\stable-diffusion-webui\venv\lib\site-packages\anyio\to_thread.py", line 31, in run_sync return await get_asynclib().run_sync_in_worker_thread( File "E:\stableDiffiusion\stable-diffusion-webui\venv\lib\site-packages\anyio_backends_asyncio.py", line 937, in run_sync_in_worker_thread return await future File "E:\stableDiffiusion\stable-diffusion-webui\venv\lib\site-packages\anyio_backends_asyncio.py", line 867, in run result = context.run(func, *args) File "E:\stableDiffiusion\stable-diffusion-webui\modules\ui.py", line 1618, in fn=lambda value, k=k: run_settings_single(value, key=k), File "E:\stableDiffiusion\stable-diffusion-webui\modules\ui.py", line 1459, in run_settings_single if not opts.set(key, value): File "E:\stableDiffiusion\stable-diffusion-webui\modules\shared.py", line 473, in set self.data_labels[key].onchange() File "E:\stableDiffiusion\stable-diffusion-webui\modules\call_queue.py", line 15, in f res = func(*args, **kwargs) File "E:\stableDiffiusion\stable-diffusion-webui\webui.py", line 63, in shared.opts.onchange("sd_model_checkpoint", wrap_queued_call(lambda: modules.sd_models.reload_model_weights())) File "E:\stableDiffiusion\stable-diffusion-webui\modules\sd_models.py", line 302, in reload_model_weights load_model_weights(sd_model, checkpoint_info) File "E:\stableDiffiusion\stable-diffusion-webui\modules\sd_models.py", line 191, in load_model_weights sd = read_state_dict(checkpoint_file) File "E:\stableDiffiusion\stable-diffusion-webui\modules\sd_models.py", line 173, in read_state_dict sd = get_state_dict_from_checkpoint(pl_sd) File "E:\stableDiffiusion\stable-diffusion-webui\modules\sd_models.py", line 147, in get_state_dict_from_checkpoint pl_sd = pl_sd.pop("state_dict", pl_sd) AttributeError: 'NoneType' object has no attribute 'pop'

`

[alexey-pronkin]

may be this help

[aliencaocao]

Have you tried adding --disable-safe-unpickle? Your model weights are not loaded at all, possibly due to you using torch 1.13 which requires --disable-safe-unpickle to load existing checkpoints.

[reussssya]

solved?