Arcore Extensions XR-Origin / AR-Origin

[sauer3d-thws]

Hi together,

following the getting started tutorial I am running into issues with packages.
https://developers.google.com/ar/develop/unity-arf/getting-started-extensions
Using Unity2022.3.5f1 I use the arcore-extensions 1.41.0 from github URL:
https://github.com/google-ar/arcore-unity-extensions.git
This automatically installs:
AR Foundation 5.0.6 / ARKit XR 5.0.6 / AR Core 5.0.6

After that an error occurs: "Unable to resolve reference 'UnityEditor.iOS.Extensions.Xcode'" because I don`t have IOS build support installed.
After deleting the "Google.IOSResolver.dll" files it seems to work.

But when I try to setup the scene with "AR Session" + "XR Origin" and "ARCore Extensions" the "XR Origin" is not accepted as Session Origin in the AR Core Extensions Script, because the old AR Origin from version 4.x has changed to XR Origin.

Do I have to delete the XR Session Origin Script and use the deprecated AR Session Origin?
Is there a way to get an older package version from arfoundation? Only 5.x is shown in package manager.

What am I missing?

Thanks a lot and best regards,
Stefan

[mgarate]

You have to add a flag to your project for the ARCoreExtensions to know that you're using AR Foundation 5. Go to Player settings > Player > Other Settings > Scripting Compilation > Scripting Define Symbols: Add ARCORE_USE_ARF_5

Once you do this, the script will allow you to add XROrigin as the Origin.

[sauer3d-thws]

Hi mgarate,
thanks a lot! It seems to work...
Is my rude solution to delete IOSresolver the way to go without IOS build support, or is there another solution? Simply ignore it?
Best regards! Stefan

[mgarate]

No problem and sorry, I can't help you with your iOS problem. I don't know the answer.

[sauer3d-thws]

Thanks a lot. At the end I simply ignored the problem and it worked anyway on android.
Best regards, Stefan

[mukiwalar]

Thanks a lot!!

[tpaslou]

After adding the flag a few errors appeared in the console. You have to close the project and re open it and then everything works fine.