[Bug]: Unity 6 Preview Gradle Build Failed

[RudieCph]

What happened?

Hi. I am trying to build the app with Unity 6 Preview. It works perfectly fine without OneSignal. As soon as the OneSignalConfig is added to the Plugins/Android/ folder, it cannot build anymore. It says Gradle Build Failed. If I remove the OneSignalConfig it builds fine, but I guess OneSignal won't work then.

Kind regards
Rune

Steps to reproduce?

1. Use unity 6 preview.
2. Install OneSignal 5.1.7
3. Build fails with "Gradle Build Failed"

What did you expect to happen?

I expect it to build like it does without OneSignal.

Unity version

Unity 6 Preview 6000.0.15f1

OneSignal Unity SDK version

5.1.7

Platform

No response

Relevant log output

CommandInvokationFailure: Gradle build failed. 
/Applications/Unity/Hub/Editor/6000.0.15f1/PlaybackEngines/AndroidPlayer/OpenJDK/bin/java -classpath "/Applications/Unity/Hub/Editor/6000.0.15f1/PlaybackEngines/AndroidPlayer/Tools/gradle/lib/gradle-launcher-8.4.jar" org.gradle.launcher.GradleMain "-Dorg.gradle.jvmargs=-Xmx4096m" "bundleRelease" 

Environment Variables:
DEBUG_ENV_VAR = UnityHub
XPC_FLAGS = 0x0
__CFBundleIdentifier = com.unity3d.unityhub
AMPLITUDE_API_KEY_GREENBUCKET_DEV = 3ded2a762163603391a425f688f990c8
AMPLITUDE_TOKEN_REDBUCKET_DEV = U4PSN7S7PuYVRODivvdcFwbu8R6IHGqa
SECURITYSESSIONID = 186a3
AMPLITUDE_API_KEY_GREENBUCKET_PROD = c86fea37a9e1d3f0878b96e15b111c7c
SENTRY_ACCESS_TOKEN = 3df78d9e53f8456aa90fbae044ce1a6261421ab1d0014674bc2e933477289017
JAVA_HOME = /Applications/Unity/Hub/Editor/6000.0.15f1/PlaybackEngines/AndroidPlayer/OpenJDK
AMPLITUDE_DEPLOYMENT_KEY_RED_BUCKET_DEV = client-wbjHYrmeSR87GmWOE7LDpf7sUySOIKHm
AMPLITUDE_TOKEN_GREENBUCKET_PROD = ZpUcbAdZXJYzNSoHsAWtL_s_JppwWid9
AMPLITUDE_API_KEY = 28f3cae0b33b8b3702120c9ed1a935aa
XPC_SERVICE_NAME = application.com.unity3d.unityhub.13266996.13267002
ANDROID_NDK_ROOT = /Applications/Unity/Hub/Editor/6000.0.15f1/PlaybackEngines/AndroidPlayer/NDK
AMPLITUDE_API_KEY_STAGING = 83ee04fccc67e4fcc7dd527c4c6f1e21
WOOTRIC_CLIENT_TOKEN = NPS-aa8be4c3
USER = rune
MallocNanoZone = 0
LOGNAME = rune
__CF_USER_TEXT_ENCODING = 0x1F6:0x0:0x9
AMPLITUDE_API_KEY_YELLOWBUCKET_DEV = 48835b4d1f5e342aefe5f016324d296a
PATH = /usr/bin:/bin:/usr/sbin:/sbin
LaunchInstanceID = FE8DD2AD-21E4-4BD4-AA7E-BAD0F90BA266
SSH_AUTH_SOCK = /private/tmp/com.apple.launchd.6UhsdPEoqU/Listeners
AMPLITUDE_API_KEY_YELLOWBUCKET_PROD = e03a9bbe92dc38a88cdb068d24c65b46
AMPLITUDE_TOKEN_REDBUCKET_PROD = jTIgKs5KTZOjiqEEVdZFbgo_VRhABduL
AMPLITUDE_TOKEN_YELLOWBUCKET_PROD = UYDQtPOw83dIfVy3SrW5oMyo7ru4PRkV
HOME = /Users/rune
TMPDIR = /var/folders/q_/_s1xb5zj29q9zr27d5dbfpxc0000gp/T/
ORIGINAL_XDG_CURRENT_DESKTOP = undefined
AMPLITUDE_TOKEN_GREENBUCKET_DEV = 84H2gMm_FJzhr3mBaX1lM1JVukmCM7d9
AMPLITUDE_TOKEN_YELLOWBUCKET_DEV = wKi8foVigDditGFvmZewRFWsEbX9Y0YO
SHELL = /bin/zsh
AMPLITUDE_API_KEY_REDBUCKET_PROD = ca12bb461ea96f9bdf5df4ded7d52994
AMPLITUDE_DEPLOYMENT_KEY_RED_BUCKET_PROD = client-zH8Y7OK1i331EKuG77C6UxN8ygcM6LzS
COMMAND_MODE = unix2003
AMPLITUDE_API_KEY_REDBUCKET_DEV = 46b8b46515e7632fc42a504b72e05fd0


stderr[

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring project ':unityLibrary:OneSignalConfig.androidlib'.
> Could not create an instance of type com.android.build.api.variant.impl.LibraryVariantBuilderImpl.
   > Namespace not specified. Specify a namespace in the module's build file. See https://d.android.com/r/tools/upgrade-assistant/set-namespace for information about setting the namespace.
     
     If you've specified the package attribute in the source AndroidManifest.xml, you can use the AGP Upgrade Assistant to migrate to the namespace value in the build file. Refer to https://d.android.com/r/tools/upgrade-assistant/agp-upgrade-assistant for general information about using the AGP Upgrade Assistant.

* 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.

BUILD FAILED in 15s
]
stdout[
Starting a Gradle Daemon, 1 stopped Daemon could not be reused, use --status for details

> Configure project :unityLibrary
Variant 'debug', will keep symbols in binaries for:
  'libunity.so'
  'libil2cpp.so'
  'libmain.so'
Variant 'release', symbols will be stripped from binaries.

> Configure project :launcher
Variant 'debug', will keep symbols in binaries for:
  'libunity.so'
  'libil2cpp.so'
  'libmain.so'
Variant 'release', symbols will be stripped from binaries.
]
exit code: 1
UnityEditor.Android.Command.WaitForProgramToRun (UnityEditor.Utils.Program p, UnityEditor.Android.Command+WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg) (at <b62d2280a88646e0944de30335629f39>:0)
UnityEditor.Android.Command.Run (System.Diagnostics.ProcessStartInfo psi, UnityEditor.Android.Command+WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg) (at <b62d2280a88646e0944de30335629f39>:0)
UnityEditor.Android.Command.Run (System.String command, System.String args, System.String workingdir, UnityEditor.Android.Command+WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg, System.Text.Encoding inputEncoding) (at <b62d2280a88646e0944de30335629f39>:0)
UnityEditor.Android.AndroidJavaTools.RunJava (System.String args, System.String workingdir, System.Action`1[T] progress, System.String error) (at <b62d2280a88646e0944de30335629f39>:0)
UnityEditor.Android.GradleWrapper.Run (UnityEditor.Android.AndroidJavaTools javaTools, Unity.Android.Gradle.AndroidGradle androidGradle, System.String workingdir, System.String task, System.String[] extraArguments, System.Action`1[T] progress) (at <b62d2280a88646e0944de30335629f39>: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.String[] extraArguments, System.Action`1[T] progress) (at <b62d2280a88646e0944de30335629f39>:0)
UnityEditor.Android.PostProcessor.Tasks.TasksCommon.RunLauncherGradleTask (UnityEditor.Android.PostProcessor.PostProcessorContext context, System.String taskName, System.String[] extraArguments, UnityEditor.Android.PostProcessor.IPostProcessorTask owner, UnityEditor.Android.PostProcessor.ProgressHandler progress) (at <b62d2280a88646e0944de30335629f39>:0)
UnityEditor.Android.PostProcessor.Tasks.BuildGradleProject.Execute (UnityEditor.Android.PostProcessor.PostProcessorContext context) (at <b62d2280a88646e0944de30335629f39>:0)
UnityEditor.Android.PostProcessor.PostProcessRunner.RunAllTasks (UnityEditor.Android.PostProcessor.PostProcessorContext context) (at <b62d2280a88646e0944de30335629f39>:0)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr, Boolean&) (at /Users/bokken/build/output/unity/unity/Modules/IMGUI/GUIUtility.cs:219)

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[RudieCph]

Duplicate. Sorry.