BOT-anist Vision Pro demo not working

Question

Created Aug ’24

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I am trying out the BOT-anist demo and compiled it for Vision Pro. When you enter the Start Planting module, the app quits with a fatal error in this section in RobotCharacter.swift:

guard var headOffset = headOffset ?? skeleton.pins["head"]?.position, var backpackOffset = backpackOffset ?? skeleton.pins["backpack"]?.position else { fatalError("Didn't find expected joint for head or backpack.") }

Thread 1: Fatal error: Didn't find expected joint for head or backpack.

How can I fix this? Thanks for any suggestions.

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Answer 1

Vision Pro Engineer OP

Apple

Aug ’24

Hello @christianjacob

We recently released Xcode 16 beta 5 that contains many fixes, some of which may be relevant to this sample. We also released an updated version of the BOT-anist sample project, which is available here.

Let me know if you still have issues running the latest version of the sample in Xcode 16 beta 5.

Thank you!

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