ARCore1.0 Sample Scene Error: "does not implement interface member"

JigglesDev · February 24, 2018, 4:26am

Hi All,

I am experimenting with the newly released ARCore 1.0 for Unity with the 2018.1.08 beta. However, I have a console error I can not seem to fix. As a result, unable to build the sample scene.

— Error Message —
Assets/GoogleARCore/SDK/Scripts/Editor/BuildHelper.cs(34,18): error CS0535: GoogleARCoreInternal.BuildHelper' does not implement interface member UnityEditor.Build.IPreprocessBuild.OnPreprocessBuild(UnityEditor.Build.Reporting.BuildReport)’

— Attempted Solutions —
None of the following fixed the issue;

Confirmed following quickstart guide correctly: ARCore support for Unity developers | Google for Developers
Confirmed Phone was eligible: S7
Found similar issue and possible fix: https://stackoverflow.com/questions/48955525/unity-3d-arcore-1-0-googlearcoreinternal-buildhelper-does-not-implement-interfa
Attempted to build, unable to compile due to existing error (Above)

Thank you in advance to anyone who is able to point me in the right direction

reedny · February 24, 2018, 1:47pm

This is due to a change in Unity 2018 to the Build package, To get around it I for ARCore I modified the ARCore C# code to use the new interface, which does mean some commenting out of ARCore code, but the build worked OK and the app ran on the phone.

sparks1020 · April 4, 2018, 2:05pm

Worked for me, thanks reedny!