:0) UnityEditor.Android.GradleWrapper.Run (UnityEditor.Android.AndroidJavaTools javaTools, Unity.Android.Gradle.AndroidGradle androidGradle, System.String workingdir, System.String task, System.Action`1[T] progress) (at :0)
> Rethrow as GradleInvokationException: Gradle build failed
> UnityEditor.Android.GradleWrapper.Run (UnityEditor.Android.AndroidJavaTools javaTools, Unity.Android.Gradle.AndroidGradle androidGradle, System.String workingdir, System.String task, System.Action`1[T] progress) (at :0)
> UnityEditor.Android.PostProcessor.Tasks.BuildGradleProject.Execute (UnityEditor.Android.PostProcessor.PostProcessorContext context) (at :0)
> UnityEditor.Android.PostProcessor.PostProcessRunner.RunAllTasks (UnityEditor.Android.PostProcessor.PostProcessorContext context) (at :0)
> Rethrow as BuildFailedException: Exception of type ‘UnityEditor.Build.BuildFailedException’ was thrown.
> UnityEditor.Android.PostProcessor.CancelPostProcess.AbortBuild (System.String title, System.String message, System.Exception ex) (at :0)
> UnityEditor.Android.PostProcessor.PostProcessRunner.RunAllTasks (UnityEditor.Android.PostProcessor.PostProcessorContext context) (at :0)
> UnityEditor.Android.PostProcessAndroidPlayer.PostProcess (UnityEditor.Modules.BuildPostProcessArgs args, AndroidPlayerBuildProgram.Data.AndroidPlayerBuildProgramOutput buildProgramOutput) (at :0)
> UnityEditor.Android.AndroidBuildPostprocessor.PostProcess (UnityEditor.Modules.BuildPostProcessArgs args, UnityEditor.BuildProperties& outProperties) (at :0)
> UnityEditor.PostprocessBuildPlayer.Postprocess (UnityEditor.BuildTargetGroup targetGroup, UnityEditor.BuildTarget target, System.Int32 subtarget, System.String installPath, System.String companyName, System.String productName, System.Int32 width, System.Int32 height, UnityEditor.BuildOptions options, UnityEditor.RuntimeClassRegistry usedClassRegistry, UnityEditor.Build.Reporting.BuildReport report) (at :0)
> UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr, Boolean&)
---
### Author:  [@B11](https://community.nianticspatial.com/u/B11)
#### Post date: [March 9, 2023, 10:39pm UTC](https://community.nianticspatial.com/t/android-build-failed-on-2021-lts/2901/2 "2023-03-09T22:39:51Z")
2021 LTS, imported their packages, attempted to build the Mesh Saver scene, same error. Just a fresh project with their packages imported.
Edit -
Had to follow this guide: [Building ARDK Apps for Android — Niantic Lightship Augmented Reality Developer Kit release-2.4.2 documentation](https://lightship.dev/docs/ardk/ardk_fundamentals/building_android.html)
I either missed it or it was not mentioned in the official environment meshing youtube tutorial I was following.
Now it builds and runs just fine, but when clicking on “Run AR” button, it just permanently goes to a full black screen, not sure why.
---
### Author:  [@Jesus\_Niantic](https://community.nianticspatial.com/u/Jesus_Niantic)
#### Post date: [March 14, 2023, 1:49am UTC](https://community.nianticspatial.com/t/android-build-failed-on-2021-lts/2901/3 "2023-03-14T01:49:36Z")
Hello @Xiaoyong I apologize for getting back to you on this issue so late. It looks like our system had flagged your original post, so it didn’t come through, and it wasn’t until B11 replied that it came on our radar.
Is this problem still persisting and if so, can you please provide a screenshot of the error message that appears in the error box when the build fails? The ones you posted come from the Console and they can sometimes be shared among different build errors so the one that appears in the error box would be very helpful.
@B11 If you’re still experiencing any issues do you think you can submit a separate topic on our community forums? Since you’re father along than Xiaoyong it would be more beneficial to address this in a separate topic.
---
### Author:  [@JC\_Pardo\_Medina](https://community.nianticspatial.com/u/JC_Pardo_Medina)
#### Post date: [March 29, 2023, 11:05am UTC](https://community.nianticspatial.com/t/android-build-failed-on-2021-lts/2901/4 "2023-03-29T11:05:09Z")
Hello! I was encountering the same issue and I tried to fix it by following the steps in the guide of @B11 . I downloaded the gradle version 8.0.2. However I started having a different bug. I wonder if the gradle version that i downloaded is too new. The error is the following one:
"FAILURE: Build failed with an exception.
- What went wrong:
A problem occurred configuring project ‘:unityLibrary’.
> Failed to notify project evaluation listener.
> org/gradle/api/plugins/MavenPlugin
- Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
- Get more help at [https://help.gradle.org](https://help.gradle.org)
BUILD FAILED in 1s
Picked up JAVA\_TOOL\_OPTIONS: -Dfile.encoding=UTF-8
UnityEditor.BuildPlayerWindow/DefaultBuildMethods:BuildPlayer (UnityEditor.BuildPlayerOptions)
Niantic.ARDK.AR.WayspotAnchors.Editor.\_RemoteAuthoringPresenceManager:OnBuild (UnityEditor.BuildPlayerOptions) (at Assets/ARDK/Editor/RemoteContent/\_RemoteAuthoringPresenceManager.cs:170)
UnityEditor.GenericMenu:CatchMenu (object,string,int)"
(I don’t know if this should be considered the same error or if I need to report a new one).
\*\*Edit: Nevermind. I tried with the gradle version 6.7.1 and i managed to build the app. Now I have the same issue as @B11 but at least the other 2 bugs are fixed. Sorry for the disturbance
---
### Author:  [@Jesus\_Niantic](https://community.nianticspatial.com/u/Jesus_Niantic)
#### Post date: [March 29, 2023, 8:20pm UTC](https://community.nianticspatial.com/t/android-build-failed-on-2021-lts/2901/5 "2023-03-29T20:20:26Z")
Hello @JC_Pardo_Medina ,
Similar to B11, can you create a new topic and with it outline the issue and include some android logcat outputs (specifically any error messages) so that we can take a look?
---
### Author:  [@Maverick\_Niantic](https://community.nianticspatial.com/u/Maverick_Niantic)
#### Post date: [March 5, 2026, 11:45pm UTC](https://community.nianticspatial.com/t/android-build-failed-on-2021-lts/2901/6 "2026-03-05T23:45:00Z")
Age