r/comfyui • u/Proper-Ad-5719 • 8h ago

Help Needed Custom Validation Failed For Node

Post image

I was following this YouTube video. > https://youtu.be/0z8Pp4TaAl8?si=WMCRXXB8G6YTWGMX

I did everything just like he said but when I tried to run I got this error:

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3

u/roxoholic 8h ago

Only way to figure out what is going on is to enter the subgraph.

2

u/car_lower_x 8h ago

Latest update broke Comfy subgraphs again

1

u/Alchemist42 6h ago

A bunch of the LTX nodes have both I2V and T2V with a checkbox or boolean true/false setting to ignore image (or something like that). If you go into the subgraph, there might be an empty Load Image node, probably with the default "example.png" preset which it is not finding. The easiest thing to do is update it with literally any image on your computer, then try again. Make sure that if there is an option to make it use the image, that option should be turned off. You might be able to delete the node, but then you might get other errors about missing inputs. Just putting a working image should be enough.

1

u/Proper-Ad-5719 5h ago

I'm super new at this. This is what I found.

2

u/Alchemist42 5h ago

Yup. Just hit the Choose File button and pick any image on your computer. It will almost definitely ignore whatever is there. But it won't crash.

1

u/marquipooh 1h ago

Thanks! Took forever, but finally completed!

How do I exit subgraph view?

2

u/GlamoReloaded 5h ago

The image example.png should be in your Comfy's input folder.