Is it a mod compatibility issue?

Select One

If it's a mod compatibility issue, please provide the link(s) to the incompatible mod(s)

No response

Minecraft version

1.20.4

Describe the issue

Putting /dims clone_dimension immersive_portals:bright_void immersive_portals:spatial_void in as a command throws a trailing data / expected whitespace error. I am completely unsure how I am even supposed to set the namespace.
The error itself:
Expected whitespace to end one argument, but found trailing data ...ve_portals:spatial_void<--[HERE]

This is probably a stupid rookie mistake on my part, but I don't think there is a way to set the namespace without getting a trailing data error.

Oh my god I am so dumb I need quotes