I made an app using Unity and Google ARCore. I built the app successfully ( The HelloAR example ) but when I run it on my android phone I get a black screen with a "Settings" icon on the top-right corner of the screen (camera doesn't open) and it doesn't work. So I did some debugging and this is the error I get when i run the app:
08-11 13:56:59.333: E/Unity(25384): ARCoreManager::FireEarlyUpdate() failed to create a shared
secondary main thread GLES context for use with the multi-threaded renderer.
08-11 13:56:59.333: E/Unity(25384): (Filename: Line: 148)
08-11 13:56:59.407: E/Unity(25384): Cannot transform coordinate when native session is null.
08-11 13:56:59.407: E/Unity(25384): (Filename: ./Runtime/Export/Debug/Debug.bindings.h Line:35)
08-11 13:56:59.409: E/Unity(25384): Cannot transform coordinate when native session is null.
I did some research but I can't find anything that is related to my problem. How can i solve this issue?