ComfyUI - Attribute Error

nik2608 · May 22, 2025, 8:18am

Hello. I work with ComfyUI Portable on a desktop (Windows 11 Pro, NVIDIA) and use an external HDD to store the models etc. ComfyUI works well; for some time now, however, I have been getting the annoying error message again and again during generation processes: Attribute error ‘str’ object has no attribute ‘keys’ (ComfyUI line 560…). I have noticed that the topic of ‘Attribute errors’ is also frequently encountered in various forms in this forum and I am looking for a solution to my specific problem. Can anyone help me? Many thanks and greetings – nik2608

John6666 · May 22, 2025, 1:42pm

I’m not a ComfyUI user, so I’m not sure, but it seems to happen more often when using older nodes.

github.com/comfyanonymous/ComfyUI

start error report

opened 07:29AM - 18 Aug 24 UTC

closed 02:18PM - 19 Aug 24 UTC

quqiufeng

Potential Bug

### Expected Behavior when start comfyui [ERROR] An error occurred while ret…rieving information for the 'ttN pipeLoaderSDXL' node. Traceback (most recent call last): File "G:\ComfyUI\ComfyUI\server.py", line 452, in get_object_info out[x] = node_info(x) File "G:\ComfyUI\ComfyUI\server.py", line 426, in node_info info['input_order'] = {key: list(value.keys()) for (key, value) in obj_class.INPUT_TYPES().items()} File "G:\ComfyUI\ComfyUI\server.py", line 426, in <dictcomp> info['input_order'] = {key: list(value.keys()) for (key, value) in obj_class.INPUT_TYPES().items()} AttributeError: 'str' object has no attribute 'keys' ### Actual Behavior start comfyui ### Steps to Reproduce start comfyui ### Debug Logs ```powershell [ERROR] An error occurred while retrieving information for the 'ttN pipeLoaderSDXL' node. Traceback (most recent call last): File "G:\ComfyUI\ComfyUI\server.py", line 452, in get_object_info out[x] = node_info(x) File "G:\ComfyUI\ComfyUI\server.py", line 426, in node_info info['input_order'] = {key: list(value.keys()) for (key, value) in obj_class.INPUT_TYPES().items()} File "G:\ComfyUI\ComfyUI\server.py", line 426, in <dictcomp> info['input_order'] = {key: list(value.keys()) for (key, value) in obj_class.INPUT_TYPES().items()} AttributeError: 'str' object has no attribute 'keys' ``` ### Other the newest code

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ComfyUI - Attribute Error

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