WARNING:
I cannot guarantee that these tips will work.
They may even cause greater damage than the one that is to be repaired.
So always try it after creating a backup copy.
Prevention is better than …
I highly recommend using version management software: GitHub, Unity Version Control , and others.
As a rule, all providers offer a free version for testing and getting started.
Before spending hours troubleshooting, restoring a known bug-free version of your project can save you time and nerves.
Do you know this?
Everything worked perfectly and then – quickly installed a small update – nothing works anymore.
As a rule, the question follows: “What did I do wrong?”
Of course – I make mistakes – but usually there are other causes when you find them.
In this section you will find problems and solutions that have been shown in my project work.
Cause and effect
Errors always arise in a certain context – unfortunately, cause and effect are not always in an obvious connection.
Comparable starting conditions are therefore important.
Here is an overview of my equipment (as of 16.08.2024):
- Hardware:
Meta Quest 3
Windows PC: AMD Ryzen 9 – 7950x, ASUS Motherboard TUF Gaming X670E-Plus, 64 GB RAM, NVIDIA GeForce RTX 4070Ti S - Software:
Windows 11 Pro – 23H2, Build: 22631.4037
Unity 2022.3.42 LTS – URP 14.0.11
Meta XR All-in-one SDK – 67.0.0 (in Unity)
Meta Quest Link 1.97.0 with 68.0.0 driver
Meta Quest Developer Hub – 4.8.0
GeForce Game Ready Drivers – 560.81–06.08.2024
Meta Quest 3 and Unity
Meta Quest Link
- 16.08.2024 – Battery empty?
The software shows low battery level or empty batteries – the device itself full batteries. - Solution: none yet, a problem with the transmission cable is suspected.
However, the cable test does not show any errors.
Meta Quest SDK - Unity
- 16.08.2024 – right hand is not displayed in the tracking
I add the blocks: Camera Rig, Hand Tracking, Teleport and Virtual Hands to the project via the SDK Building Blocks in Unity.
The right hand does not appear in the scene and in the glasses. - Solution:
In the
hierarchy I click on: [Building Block] Camera Rig – [Building Block] Hand Interactions – [Building Block] Synthetic Right Hand – OVRRightHandVisual – OculusHand_R – r_handMeshNodeIn the inspector at the mesh it says: Missing Node.
I open the directory in the project : Packages – Meta XR Interaction SDK Essenstials -Runtime – Meshes – OVRHandR
I drag and drop the file r_handMeshNode (with the GitterIcon) into the field Inspector – Mesh (Missing Node).
Unity crashes or....
… no longer behaves as expected.
One tip – which I come across again and again – is to delete the Library folder.
This folder is created for each project and contains, among other things, temporary directories and each program stores various settings there.
If I understood correctly, it is a kind of database.
Deleting the folder initiates a process in Unity so that this data is created anew – and hopefully error-free.
Sometimes it helps with problems – sometimes it doesn’t.
If you restart the project for the first time after deleting it, it may take some time – the database, as I said, has to be recreated.
Can work - but doesn't have to
Another tip from this section: Gradually reinstall all the assets you have used.
