ImportError: cannot import name 'LoraLoaderMixin' from 'diffusers.loaders'

[yj373]

Describe the bug

Hello,

I have met an ImportError when I run from diffusers.loaders import LoraLoaderMixin. When I searched for the source code of this class LoraLoaderMixin, I could not find the page. Can anyone help me with that? Thanks!

Reproduction

```from diffusers.loaders import LoraLoaderMixin``

Logs

---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
<ipython-input-8-a5769eb9fd75> in <cell line: 55>()
     53     UNet2DConditionModel,
     54 )
---> 55 from diffusers.loaders import LoraLoaderMixin
     56 from diffusers.optimization import get_scheduler
     57 from diffusers.training_utils import _set_state_dict_into_text_encoder, cast_training_params

ImportError: cannot import name 'LoraLoaderMixin' from 'diffusers.loaders' (/usr/local/lib/python3.10/dist-packages/diffusers/loaders/__init__.py)

System Info

🤗 Diffusers version: 0.30.0.dev0
Platform: Linux-6.1.85+-x86_64-with-glibc2.35
Running on a notebook?: No
Running on Google Colab?: No
Python version: 3.10.12
PyTorch version (GPU?): 2.3.1+cu121 (True)
Flax version (CPU?/GPU?/TPU?): 0.8.4 (gpu)
Jax version: 0.4.26
JaxLib version: 0.4.26
Huggingface_hub version: 0.23.4
Transformers version: 4.42.4
Accelerate version: not installed
PEFT version: not installed
Bitsandbytes version: not installed
Safetensors version: 0.4.3
xFormers version: not installed
Accelerator: NVIDIA L4, 23034 MiB VRAM
Using GPU in script?:
Using distributed or parallel set-up in script?:

Who can help?

No response

[tolgacangoz]

Just ~2 hours ago, this file was renamed as lora_pipeline.py :)

But I guess one is supposed to see a deprecation warning rather than an ImportError 🤔.

[tolgacangoz]

@yj373 Now, this change has been reverted. You can pull the latest version and can continue there.

[yiyixuxu]

yeah I reverted for the time, we will properly deprecate it and then add it back @sayakpaul

[sayakpaul]

Can you check if with #8981, your error goes away? @yj373

[yj373]

I just checked. Yes, the error is gone. Thanks! @sayakpaul

[XXXXemberXXXX]

I just checked. Yes, the error is gone. Thanks! @sayakpaul

Did you change the code from "diffusers.loaders import IPAdapterMixin" to "from diffusers.loaders.lora_pipeline import IPAdapterMixin"?
How did you solve this problem？thx

[asomoza]

The main issue here was the LoraLoaderMixin which can be imported like:

from diffusers.loaders import LoraLoaderMixin

You're posting about IPAdapterMixin which is a different mixin but can also be imported like this:

from diffusers.loaders import IPAdapterMixin

Both these imports work with the current main version of diffusers.