I'm trying to get the sample scene from the official github repo of ARFoundation 2.1 to work, but it doesnt generate the image database. The apk is working though and a camera feed can be seen on the display. The error codes: Failed to generated ARCore reference image library 'ReferenceImageLibrary' UnityEngine.GUIUtilityrocessEvent(Int32, IntPtr) BuildFailedException: Failed to generate image database. Output from arcoreimg: stdout: ==== stderr: C:\Users\XXX\AppData\Local\Temp\4d676c83db4046c2bd0d68b010cd84ef\39344433fd8c4712b4ee109a5c73a2b2.txt:line 1: Invalid width specified: 0. ==== UnityEditor.XR.ARCore.ARCorePreprocessBuild.BuildImageTrackingAssets () (at Library/PackageCachefirstname.lastname@example.org/Editor/ARCoreBuildProcessor.cs:279) UnityEditor.XR.ARCore.ARCorePreprocessBuild.OnPreprocessBuild (UnityEditor.Build.Reporting.BuildReport report) (at Library/PackageCacheemail@example.com/Editor/ARCoreBuildProcessor.cs:32) UnityEditor.Build.BuildPipelineInterfaces+<OnBuildPreProcess>c__AnonStorey0.<>m__1 (UnityEditor.Build.IPreprocessBuildWithReport bpp) (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/BuildPipelineInterfaces.cs:376) UnityEditor.Build.BuildPipelineInterfaces.InvokeCallbackInterfacesPair[T1,T2] (System.Collections.Generic.List`1[T] oneInterfaces, System.Action`1[T] invocationOne, System.Collections.Generic.List`1[T] twoInterfaces, System.Action`1[T] invocationTwo, System.Boolean exitOnFailure) (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/BuildPipelineInterfaces.cs:356) UnityEngine.GUIUtilityrocessEvent(Int32, IntPtr) I'm using Unity 2019.1.0f2 on Windows 7, all packages, sdk's etc should be installed. My target is a Samsung Galaxy Tab S4 with Android 9, although that shouldn't matter here. Actually tried the same thing on a different PC with Windows 10 and Unity 2019.1.3f1, same problem. I guess I'm missing some packages? I'm really clueless. (On a side note: Build and run doesnt work for me either with ARFoundation, but I guess that's another story on its own). Does anyone have a solution for my problem? I'm tired of working on ARKit and ARCore simultanously and would really like to utilize ARFoundation. Thanks. edit: attached a picture of my packege manager window.