Hey guys can anyone please help me solve this evil demonic bug:

Unity Engine
,
1

Hello everyone,
Im also new to Unity and just using it for a thesis Project. Im using Vuforia as well. My project works on play mode perfectly but when i want to build on the phone it gives me this error too:

Saving Prefab to immutable folder is not allowed: Packages/com.ptc.vuforia.engine/Vuforia/Prefabs/DefaultPlaneIndicator.prefab

2

What script is it from?
And what Unity version do you use?

3

FYI - as it turns out, this is not an AR-specific question and does not belong in the AR forum.

I happen to see the issue here, which is that you cannot modify the contents of anything in Unity’s Packages/ directory. You should save assets in your Assets/ directory.