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(fix): Fix controlnet import for latest diffusers version bump #8560

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(fix): Fix controlnet import for latest diffusers version bump #8560

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16 changes: 14 additions & 2 deletions invokeai/backend/util/hotfixes.py
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,11 @@
from diffusers.configuration_utils import ConfigMixin, register_to_config
from diffusers.loaders.single_file_model import FromOriginalModelMixin
from diffusers.models.attention_processor import AttentionProcessor, AttnProcessor
from diffusers.models.controlnet import ControlNetConditioningEmbedding, ControlNetOutput, zero_module
from diffusers.models.controlnets.controlnet import (
ControlNetConditioningEmbedding,
ControlNetOutput,
zero_module,
)
from diffusers.models.embeddings import (
TextImageProjection,
TextImageTimeEmbedding,
Expand Down Expand Up @@ -775,7 +779,15 @@ def forward(


diffusers.ControlNetModel = ControlNetModel
diffusers.models.controlnet.ControlNetModel = ControlNetModel
# Patch both the new and legacy module paths for compatibility
try:
diffusers.models.controlnets.controlnet.ControlNetModel = ControlNetModel
except Exception:
# Fallback for environments still exposing the legacy path
try:
diffusers.models.controlnet.ControlNetModel = ControlNetModel
except Exception:
pass
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Bug: Incompatible Import Path Breaks Module Compatibility

The module's import statement unconditionally uses the new diffusers.models.controlnets.controlnet path. This causes an ImportError on older diffusers versions, preventing the module from loading and making the patching logic's compatibility fallback unreachable.

Fix in Cursor Fix in Web



# patch LoRACompatibleConv to use original Conv2D forward function
Expand Down