[NUKE]<output> has no valid channels - nothing to write.

Deadline
1

Hi Guys,

I’m getting a error I haven’t had before with a writenode Gizmo I have made.

file_v001.mov: has no valid channels - nothing to write.

It also happens when writing EXR’s or other files.
I have tried it in a clean script and made sure the channels are fine.

When leaving the groupnode as groupnode (instead of saving as gizmo) it works fine…

My gizo:
Groupnode

  • Input
  • Writenode called “autoWrite”
  • Output

Some knobs from the writenode are exposed on the groupnode.

Any ideas?

2

Hi ,

Can you run this comp from nuke command line with the verbosity set to 2:
/path/to/nukeexecutable -V 3 -x /path/to/file.nk

paste the results.

That way we can see where its getting tripped up.
I half suspect that it cant find the nested read node in the gizmo…

Cheers
Kym

3

I’m watching over here too. Thanks for the first response here Kym! Doing our job for us again, you may need an honourary Thinbox support title. :smiley: