ComfyUI Node: Load LoRA Only

Load LoRA Only:

The LoadLoraOnly node is designed to facilitate the loading of LoRA (Low-Rank Adaptation) files without immediately applying them to any models. This node is particularly useful for scenarios where you want to prepare a LoRA file for later use, allowing you to load it into memory and then apply it to a model at a subsequent stage using other nodes like MergeLoraToModel. By separating the loading and application processes, this node provides flexibility in managing LoRA files, enabling you to efficiently handle multiple LoRA configurations and apply them as needed. This approach is beneficial for AI artists who wish to experiment with different LoRA settings without the need to reload files repeatedly, thus saving time and computational resources.

Load LoRA Only Input Parameters:

lora_name

The lora_name parameter specifies the name of the LoRA file you wish to load. This parameter is crucial as it determines which LoRA file will be retrieved from the designated directory. The available options for this parameter are dynamically generated from the list of LoRA files present in the specified folder, ensuring that you can only select from existing files. This helps prevent errors related to non-existent files. The lora_name parameter does not have a default value, as it requires explicit selection by the user to ensure the correct file is loaded.

Load LoRA Only Output Parameters:

lora

The lora output parameter represents the loaded LoRA file. Once the specified LoRA file is successfully loaded, it is returned as an output, ready to be used in subsequent nodes. This output is essential for workflows that involve applying LoRA configurations to models, as it provides the necessary data structure that can be merged or manipulated further. The lora output ensures that the loaded file is accessible for any downstream processes that require it.

Load LoRA Only Usage Tips:

• Ensure that the lora_name you select corresponds to a valid and existing LoRA file in your designated directory to avoid loading errors.
• Use the LoadLoraOnly node in conjunction with nodes like MergeLoraToModel to apply the loaded LoRA to your models, allowing for flexible and efficient model customization.

Load LoRA Only Common Errors and Solutions:

FileNotFoundError: LoRA file not found

• Explanation: This error occurs when the specified lora_name does not correspond to any file in the designated directory.
• Solution: Verify that the lora_name is correct and that the file exists in the specified directory. Ensure that the directory path is correctly set up in your environment.

TypeError: Invalid LoRA file format

• Explanation: This error indicates that the file specified by lora_name is not in a valid format that can be loaded as a LoRA file.
• Solution: Check the file format and ensure it is compatible with the expected LoRA file structure. Convert or replace the file if necessary to match the required format.