I mentioned it in #89 but I figured it could use it's own issue tracker (if not feel free to close this!)
Basically the gradle just doesn't work for the Immersive Portals branch, as the Maven repositories seem to be wrong. I believe this was the issue and was fixed on the main mod, but was never fixed for this. Unfortunately I don't know enough to fix it myself so the help would be very appreciated!

log.txt (Error that is given when trying to compile the mod)

we now have a Ko-fi page, if you want to donate https://ko-fi.com/vivecraft

the immersive portals branch is oudated, no plan to fix that atm, I'm just working on a new one.

@fayer3 Is there any way I can donate to you? I appreciate what you're doing and I know it's a lot of work, and since I don't have the coding experience to actually help, is there any way I could give you some money instead?