Minify Release option breaks AR

Unity Engine
, ,
1

The option “Release” in Player Settings > Publishing Settings > Minify appears to break AR for both APK and A AB builds.

This option is required as it creates a ReTrace Mapping file that is required to publish a build on the Google Play Store.

Is there a fix for this or is there another way to create the required ReTrace Mapping file?

The issue is present using Unity 2021.3.8f1

Thanks

2

To anyone who finds this having the same issue.
This issue is solved by going to Player Settings > Other and ticking “Custom Proguard File”, then open the file it points to in Assets > Plugins > Android > proguard.txt and add the following text to it:

  -keepclassmembers public class com.google.ar.core.Session {
  static <methods>;
  }
  -keepclassmembers class com.google.ar.core.** { *; }
  -keep class com.google.ar.** { *; }
  -keep class com.google.vr.** { *; }
  -keep class com.unity3d.unitygar.** { *; }
  -keep class com.unity3d.plugin.** { *; }
  -keep class com.google.atap.tangoservice.** { *; }
  -keep class com.google.tango.** { *; }
  -keepclassmembers class com.google.ar.core.Pose {
  private <fields>;  
  }

Hope this helps!

4 Likes
3

you saved me, thanks a lot!

1 Like
4

You’re welcome!

5

I’ve made a note for us to look into this, but it would help if someone could file a bug with a repro case so our QA team can be aware of this issue? Unity QA: Building quality with passion