Bug XRI 2.4.0 Compiler Error

When I try to import XRI 2.4.0, I get this compiler error: Library\PackageCache\com.unity.xr.interaction.toolkit@2.4.0\Runtime\Utilities\ComponentLocatorUtility.cs(71,39): error CS0117: 'Object' does not contain a definition for 'FindFirstObjectByType'

I didn't get this error when I was using 2.3.x versions of XRI

 

Hi, I tried creating a completely new project and then directly importing XRI v.2.4.0 and still get this error

 

Unity 2021.3.12f1 (LTS)

 

Initially, I had updated it using the package manager (I didn't do it manually by editing the manifest). That gave this error so I created a brand new 3D core project and imported XRI 2.4.0 from the package manager and still got this error

 

Just tried it again by creating another brand new project. Still the same error. The steps I am following are:
1. create new project from unity hub
2. go to package manager and add package by name and type: com.unity.xr.interaction.toolkit (I don't mention version so it installs the latest one)
3. as soon as the XRI package is installed, it gives the error above. Not only that, it says that the Unity Input system package is a dependency for this package but I don't see it when I am in "Packages: In Project". When I change to "Packages: Unity Registry" it shows a green check mark next to the Input system package showing it is installed. But I never got the prompt to restart the editor to enable the new input system backends (as mentioned in the Installation page of XRI documentation).

I never faced this issue when I was using XRI 2.3.x

 

Hi. Just downloaded Unity 2022 LTS. It is working now. Thank you!

 

I am still getting a weird error. The hands for the XR Device Simulator are both pink (it is not able to find some shader)

 

I have already installed the xr hands package. However, isn't shader graph part of URP? Does this mean I cant use XRI in the built-in render pipeline?

 

Hello, I got an error message in the unity Hub: what might be the reason: Library\PackageCache\com.unity.xr.interaction.toolkit@2.4.0\Runtime\Utilities\ComponentLocatorUtility.cs(31,43): error CS0117: 'Object' does not contain a definition for 'FindFirstObjectByType

 

Hi, firstly I am not an expert in anyway so I may have missed something simple (including am I in the right Forum, my first post), but I am trying to use Hand Tracking and Motion Controllers on an OpenXR project via Oculus Quest 2.

My current set up (mostly the "XR Interaction Hands Setup" from XR Interaction Toolkit 2.4.3) is not working as the manual suggests for the component - XR Input Modality Manager held within the XR Origin (XR Rig).

If I start the runtime with the controllers in my hand they work as I set them up.

Then when I put the controllers down, my hands appear and work as expected, but when I pick the controllers back up they do not reappear. However the joysticks work in a fashion, but not the grab etc.

From my days spent trying to find a solution it seems the Motion Controllers Section is not working correctly. I have swopped the Hand prefab with the Controller prefab and I get the same result i.e. whatever is in the Motion Controllers section will only work correct if used on Awake of the project, if it is put down or not used at the start of the project runtime it has the aforementioned outcome.

I am using:
2022.3.5,
XR Hands 1.2.1
XR Interaction Toolkit 2.4.3
XR Plugin Management 4.4.0

Thank you to anyone who can advise, as said I am not an expert but grateful for any help in this matter.

FYI I have managed to get the Meta Controllers for Hand set up on another project, which seem to work the best so far. So I am hoping that this OpenXR version is going through a developmental teething process and aims to match what Meta is offering via the Oculus Integration Package 55.0

 

I am having the same issue with the caveat that I can't get the controllers to work/show up with the "HandsDemoScene" and the "XR Interaction Hands Setup". They seem to be correctly setup in the "XR Input Modality Manager" but nothing happens ingame when I try to change from hand tracking to controllers or even when I start the app with controllers.

 

Found the solution after posting this.

I was using both "Meta Quest Touch Pro Controller Profile" and "Oculus Touch Controller Profile" so the controllers were not being tracked correctly.

I changed to using only one profile and it now works, independently if I use the Touch Pro or just the Touch.

 

Glad you have a resolution.

Unfortunately, my project never had this set up. I only have Oculus Touch Controller Profile on PC/Android Tabs.



I will keep looking, if your hands/controllers are working regardless wether you are using hands/controllers and can swop multiple times then that gives me hope. I must be missing something

Thanks again and good luck with your project.

 

It looks like my issue is resolved.

I added my Controller Prefab to the XRI Default Left/Right Controller in the XR Interaction Toolkit, helded within the XR Controller (Action-based) component.



Now I can change between hands and controllers.