already using this:
"next": "15.0.3",
"react": "19.0.0-rc-66855b96-20241106",
"react-dom": "19.0.0-rc-66855b96-20241106",
still the same error: TypeError: Cannot read properties of undefined (reading 'ReactCurrentOwner')

Are you using the v9.0.0-rc.1 of react-three/fiber?

├─┬ @react-three/drei@9.119.0
│ ├─┬ @react-spring/three@9.7.5
│ │ └── @react-three/fiber@8.17.10 deduped invalid: "9.0.0-rc.1" from the root project
│ └── @react-three/fiber@8.17.10 deduped invalid: "9.0.0-rc.1" from the root project
├── @react-three/fiber@8.17.10 invalid: "9.0.0-rc.1" from the root project
└─┬ r3f-perf@7.2.3
└── @react-three/fiber@8.17.10 deduped invalid: "9.0.0-rc.1" from the root project

no i get those errors, do i need this version?

That comment I linked clearly says that it works with that particular version.

And the new warnings you get are npm issues with peer dependencies which you can circumvent using --legacy-peer-deps.

thanks mate got it fixed the problem was that i had something wrong in the devDependencies and installing things ended up with an error even with --legacy-peer-deps. sorry for messing around i'm a beginner 🙂