Build Error on Android App Bundle

Hello, I am getting errors while building my app for android. The errors started when I tried to build an AAB at a target API level of 33. Any guidance would be greatly appreciated. Thanks!

CommandInvokationFailure: Gradle build failed.

/Applications/Unity/Hub/Editor/2021.3.6f1/PlaybackEngines/AndroidPlayer/OpenJDK/bin/java -classpath "/Applications/Unity/Hub/Editor/2021.3.6f1/PlaybackEngines/AndroidPlayer/Tools/gradle/lib/gradle-launcher-6.1.1.jar" org.gradle.launcher.GradleMain "-Dorg.gradle.jvmargs=-Xmx4096m" "bundleRelease"



stderr[

Picked up JAVA_TOOL_OPTIONS: -Dfile.encoding=UTF-8

Note: /Users/pauldesautels/Documents/Pabloware/LEGENDARY_LARRY/Library/Bee/Android/Prj/IL2CPP/Gradle/unityLibrary/src/main/java/com/unity3d/player/UnityPlayerActivity.java uses or overrides a deprecated API.

Note: Recompile with -Xlint:deprecation for details.



FAILURE: Build failed with an exception.



* What went wrong:

Execution failed for task ':launcher:minifyReleaseWithProguard'.

> java.io.IOException: Can't read [/Applications/Unity/Hub/Editor/2021.3.6f1/PlaybackEngines/AndroidPlayer/SDK/platforms/android-33/optional/android.car.jar] (Can't process class [android/car/Car$CarServiceLifecycleListener.class] (Unsupported version number [55.0] (maximum 54.0, Java 10)))



* 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, 2 stopped Daemons could not be reused, use --status for details



> Configure project :launcher

WARNING: The option setting 'android.enableR8=false' is deprecated.

It will be removed in version 5.0 of the Android Gradle plugin.

You will no longer be able to disable R8



> Task :unityLibraryreBuild UP-TO-DATE

> Task :launcherreBuild UP-TO-DATE

> Task :unityLibraryreReleaseBuild UP-TO-DATE

> Task :unityLibraryackageReleaseRenderscript NO-SOURCE

> Task :unityLibrary:compileReleaseRenderscript NO-SOURCE

> Task :UnityDataAssetPack:generateAssetPackManifest UP-TO-DATE

> Task :launcher:extractProguardFiles UP-TO-DATE

> Task :unityLibrary:generateReleaseResValues UP-TO-DATE

> Task :unityLibrary:generateReleaseResources UP-TO-DATE

> Task :launcherreReleaseBuild UP-TO-DATE

> Task :unityLibraryackageReleaseResources UP-TO-DATE

> Task :unityLibrary:extractDeepLinksRelease UP-TO-DATE

> Task :launcherrocessReleaseAssetPackManifests UP-TO-DATE

> Task :launcher:linkReleaseManifestForAssetPacks UP-TO-DATE

> Task :launcher:compileReleaseRenderscript NO-SOURCE

> Task :launcher:generateReleaseResValues UP-TO-DATE

> Task :launcher:generateReleaseResources UP-TO-DATE

> Task :unityLibrary:compileReleaseLibraryResources UP-TO-DATE

> Task :unityLibrary:compileReleaseAidl NO-SOURCE

> Task :unityLibrary:generateReleaseBuildConfig

> Task :launcher:createReleaseCompatibleScreenManifests

> Task :unityLibraryarseReleaseLocalResources UP-TO-DATE

> Task :launcher:mergeReleaseResources UP-TO-DATE

> Task :unityLibrary:javaPreCompileRelease UP-TO-DATE

> Task :unityLibraryrocessReleaseJavaRes NO-SOURCE

> Task :launcher:extractDeepLinksRelease UP-TO-DATE

> Task :unityLibrary:bundleLibResRelease NO-SOURCE

> Task :unityLibrary:mergeReleaseShaders UP-TO-DATE

> Task :unityLibrary:compileReleaseShaders NO-SOURCE

> Task :unityLibrary:generateReleaseAssets UP-TO-DATE

> Task :launcher:checkReleaseDuplicateClasses UP-TO-DATE

> Task :launcher:compileReleaseAidl NO-SOURCE

> Task :launcher:generateReleaseBuildConfig

> Task :launcher:javaPreCompileRelease UP-TO-DATE

> Task :launcherrocessReleaseJavaRes NO-SOURCE

> Task :launcher:mergeReleaseJavaResource UP-TO-DATE

> Task :launcher:mergeReleaseShaders UP-TO-DATE

> Task :launcher:compileReleaseShaders NO-SOURCE

> Task :launcher:generateReleaseAssets UP-TO-DATE

> Task :launcher:mergeReleaseJniLibFolders UP-TO-DATE

> Task :launcher:collectReleaseDependencies UP-TO-DATE

> Task :launcher:configureReleaseDependencies UP-TO-DATE

> Task :launcherarseReleaseIntegrityConfig UP-TO-DATE

> Task :launcher:validateSigningRelease UP-TO-DATE

> Task :unityLibraryackageReleaseAssets

> Task :unityLibrary:mergeReleaseJniLibFolders

> Task :unityLibraryrocessReleaseManifest

> Task :launcher:assetPackReleasePreBundleTask UP-TO-DATE

> Task :unityLibrary:mergeReleaseNativeLibs

> Task :unityLibrary:stripReleaseDebugSymbols

> Task :launcherrocessReleaseManifest

> Task :unityLibrary:copyReleaseJniLibsProjectOnly

> Task :launcher:mergeReleaseAssets

> Task :unityLibrary:generateReleaseRFile

aapt2 W 08-12 16:36:15 64096 2791996 LoadedArsc.cpp:657] Unknown chunk type '200'.



aapt2 W 08-12 16:36:15 64096 2791996 LoadedArsc.cpp:657] Unknown chunk type '200'.



> Task :launcherrocessReleaseResources

> Task :launcher:mergeReleaseNativeLibs

> Task :launcher:stripReleaseDebugSymbols

> Task :launcher:bundleReleaseResources



> Task :unityLibrary:compileReleaseJavaWithJavac



> Task :unityLibrary:mergeReleaseGeneratedProguardFiles UP-TO-DATE

> Task :unityLibrary:exportReleaseConsumerProguardFiles UP-TO-DATE

> Task :unityLibrary:bundleLibRuntimeToJarRelease

> Task :unityLibrary:bundleLibCompileToJarRelease

> Task :launcher:compileReleaseJavaWithJavac

> Task :launcher:mergeReleaseGeneratedProguardFiles UP-TO-DATE



> Task :launcher:minifyReleaseWithProguard FAILED

ProGuard, version 6.0.3

Reading input...

Reading program jar [/Users/pauldesautels/Documents/Pabloware/LEGENDARY_LARRY/Library/Bee/Android/Prj/IL2CPP/Gradle/unityLibrary/libs/unity-classes.jar] (filtered)

Reading program jar [/Users/pauldesautels/.gradle/caches/transforms-2/files-2.1/b6257d464e65990d4b3bc83730a9e910/UnityAds-runtime.jar] (filtered)

Reading program jar [/Users/pauldesautels/.gradle/caches/transforms-2/files-2.1/f50f8f4811bb1868446a8fa8c1e81c2d/common-runtime.jar] (filtered)

Reading program jar [/Users/pauldesautels/.gradle/caches/transforms-2/files-2.1/309637c8fe751374308e3a44ad5c886d/billing-4.0.0-runtime.jar] (filtered)

Reading program jar [/Users/pauldesautels/.gradle/caches/transforms-2/files-2.1/6e1f69c9173f6b668c6234c95ac4c036/core-1.10.0-runtime.jar] (filtered)

Reading program jar [/Users/pauldesautels/Documents/Pabloware/LEGENDARY_LARRY/Library/Bee/Android/Prj/IL2CPP/Gradle/unityLibrary/build/intermediates/runtime_library_classes_jar/release/classes.jar] (filtered)

Reading program jar [/Users/pauldesautels/Documents/Pabloware/LEGENDARY_LARRY/Library/Bee/Android/Prj/IL2CPP/Gradle/launcher/build/intermediates/compile_and_runtime_not_namespaced_r_class_jar/release/R.jar] (filtered)

Reading program directory [/Users/pauldesautels/Documents/Pabloware/LEGENDARY_LARRY/Library/Bee/Android/Prj/IL2CPP/Gradle/launcher/build/intermediates/javac/release/classes] (filtered)

Reading program jar [/Users/pauldesautels/Documents/Pabloware/LEGENDARY_LARRY/Library/Bee/Android/Prj/IL2CPP/Gradle/launcher/build/intermediates/merged_java_res/release/out.jar] (filtered)

Reading library jar [/Applications/Unity/Hub/Editor/2021.3.6f1/PlaybackEngines/AndroidPlayer/SDK/platforms/android-33/android.jar]

Reading library jar [/Applications/Unity/Hub/Editor/2021.3.6f1/PlaybackEngines/AndroidPlayer/SDK/build-tools/30.0.2/core-lambda-stubs.jar]

Reading library jar [/Applications/Unity/Hub/Editor/2021.3.6f1/PlaybackEngines/AndroidPlayer/SDK/platforms/android-33/optional/org.apache.http.legacy.jar]

Reading library jar [/Applications/Unity/Hub/Editor/2021.3.6f1/PlaybackEngines/AndroidPlayer/SDK/platforms/android-33/optional/android.car.jar]

48 actionable tasks: 21 executed, 27 up-to-date

]

exit code: 1

UnityEditor.Android.Command.WaitForProgramToRun (UnityEditor.Utils.Program p, UnityEditor.Android.Command+WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg) (at <0bc7e9c04c1540528b26863a0cb726ae>:0)

UnityEditor.Android.Command.Run (System.Diagnostics.ProcessStartInfo psi, UnityEditor.Android.Command+WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg) (at <0bc7e9c04c1540528b26863a0cb726ae>:0)

UnityEditor.Android.Command.Run (System.String command, System.String args, System.String workingdir, UnityEditor.Android.Command+WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg) (at <0bc7e9c04c1540528b26863a0cb726ae>:0)

UnityEditor.Android.AndroidJavaTools.RunJava (System.String args, System.String workingdir, System.Action`1[T] progress, System.String error) (at <0bc7e9c04c1540528b26863a0cb726ae>: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 <0bc7e9c04c1540528b26863a0cb726ae>: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 <0bc7e9c04c1540528b26863a0cb726ae>:0)

UnityEditor.Android.PostProcessor.Tasks.BuildGradleProject.Execute (UnityEditor.Android.PostProcessor.PostProcessorContext context) (at <0bc7e9c04c1540528b26863a0cb726ae>:0)

UnityEditor.Android.PostProcessor.PostProcessRunner.RunAllTasks (UnityEditor.Android.PostProcessor.PostProcessorContext context) (at <0bc7e9c04c1540528b26863a0cb726ae>: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 <0bc7e9c04c1540528b26863a0cb726ae>:0)

UnityEditor.Android.PostProcessor.PostProcessRunner.RunAllTasks (UnityEditor.Android.PostProcessor.PostProcessorContext context) (at <0bc7e9c04c1540528b26863a0cb726ae>:0)

UnityEditor.Android.PostProcessAndroidPlayer.PostProcess (UnityEditor.Modules.BuildPostProcessArgs args, AndroidPlayerBuildProgram.Data.AndroidPlayerBuildProgramOutput buildProgramOutput) (at <0bc7e9c04c1540528b26863a0cb726ae>:0)

UnityEditor.Android.AndroidBuildPostprocessor.PostProcess (UnityEditor.Modules.BuildPostProcessArgs args, UnityEditor.BuildProperties& outProperties) (at <0bc7e9c04c1540528b26863a0cb726ae>: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 /Users/bokken/buildslave/unity/build/Editor/Mono/BuildPipeline/PostprocessBuildPlayer.cs:370)

UnityEngine.GUIUtilityrocessEvent(Int32, IntPtr, Boolean&) (at /Users/bokken/buildslave/unity/build/Modules/IMGUI/GUIUtility.cs:189)

 

Another Error:

Picked up JAVA_TOOL_OPTIONS: -Dfile.encoding=UTF-8

Note: /Users/pauldesautels/Documents/Pabloware/LEGENDARY_LARRY/Library/Bee/Android/Prj/IL2CPP/Gradle/unityLibrary/src/main/java/com/unity3d/player/UnityPlayerActivity.java uses or overrides a deprecated API.

Note: Recompile with -Xlint:deprecation for details.



FAILURE: Build failed with an exception.



* What went wrong:

Execution failed for task ':launcher:minifyReleaseWithProguard'.

> java.io.IOException: Can't read [/Applications/Unity/Hub/Editor/2021.3.6f1/PlaybackEngines/AndroidPlayer/SDK/platforms/android-33/optional/android.car.jar] (Can't process class [android/car/Car$CarServiceLifecycleListener.class] (Unsupported version number [55.0] (maximum 54.0, Java 10)))



* 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



UnityEngine.GUIUtilityrocessEvent (int,intptr,bool&) (at /Users/bokken/buildslave/unity/build/Modules/IMGUI/GUIUtility.cs:189)

 

• Java 8 -> 52
• Java 9 -> 53
• Java 10 -> 54
• Java 11 -> 55

This means that class file was compiled (to byte code) using a higher version of java compared to the one you currently use.

I would love to see how this problem will get solved and unfortunately, I can't reproduce/test it now. I will keep watching.
This is an interesting issue because, unity doesn't support no greater than Java 8 but android library it self is compiled with Java 11 which is a bit surprising.

For the time being, please use A̶p̶i̶ 3̶2̶ API 33 (check below)as it will be good target for next 2 years roughly to by pass the issue.

Update
Try with API level 33 now as new norm is coming up where google expects only builds targeting api 33 from Aug 31 2023. Please check this reference.

 

Thanks for the info! Build succeeds.

 

I also have a similar problem.
I'm not sure I have it all understood. I upgraded to 2021.3.12 and tried API target 32 but I get the error

Code (Boo):

1. Android SDK does not include your Target SDK of 32.
2. Please use the Android SDK Manager to install your target SDK version. Restart Unity after SDK installation for the changes to take effect.
3.  

This target api seems to be installed in android studio. And Unity itself usually installs what is needed anyway.
It doesn't work for me, what should I do?

 

If you set Target API as 32 in your Player Settings -> Android -> Other Settings -> Target API and build, it should show a prompt to download sdk 32. If it doesn't you have the following manual option.
1. Install Android Studio, if you haven't yet
2. From SDK installer, install API 32
3. Open the install folder and copy it (platforms/android-32)
4. Paste it in Unity's Android SDK folder (under platforms)
5. Restart unity

Usual reason we saw for not unity upgrading automatically is because of the folder access rights. Try with admin access and if not, proceed with above manual process.

 

Hi, I can confirm we are also running into the same issue. We have recently integrated Admob mediation SDK in our game and we are getting this error in build while generating apk. Note that this error occur when we enable proguard option (Release) under publshing > minify > release.

* What went wrong:

Execution failed for task ':launcher:minifyReleaseWithProguard'.

> java.io.IOException: Can't read [C:\Users\Plasma\.gradle\caches\transforms-2\files-2.1\61f3b99406cc323f0226be9bc77a28cd\googlemobileads-unity-runtime.jar(;;;;;;;**.class)] (Can't process class [com/google/unity/ads/AdNetworkExtras.class] (Unsupported version number [55.0] (maximum 54.0, Java 10)))

We are using Unity 2020.3.38f1 LTS and Target API 32. Admob mediation also include Meta(Facebook) ad services. Is there any work around to tackle this issue. May be changing some values or version number in some file. ???

 

As per the error, it looks like Proguard version used by unity is not supporting the compiled class (which is compiled with a higher version).

Try upgrading the proguard version and see if it works.

 

So how to upgrade proguard version. I already tried to find a solution for upgrading a proguard version. but can't find solution.

 

May I know your unity version and gradle version you are currently using?

 

Unity 2020.3.38f1 LTS and Target API 32 and gradle version is 6.1.1

 

Can you try upgrading gradle version from 6.1.1 to a higher version.
or
As per this, you need to specify in your gradle file.

Try this
1. Enable baseGradle template from player settings
2. Enter the proguard classpath like below

Code (CSharp):

1. buildscript {
2.     repositories {
3.         google()       // For the Android Gradle plugin.
4.         mavenCentral() // For the ProGuard Gradle Plugin and anything else.
5.     }
6.     dependencies {
7.         classpath 'com.android.tools.build:gradle:x.y.z'    // The Android Gradle plugin. (You may have 3.4.3 or 4.0.1 or 4.1.1 here)
8.         classpath 'com.guardsquare:proguard-gradle:7.1.0'  // The ProGuard Gradle plugin. <= Add this line
9.     }
10. }

 

Ok so in my case the problem was Google Admob plugin 7.3.0. This is a latest plugin and is not compatible with our current jdk. https://github.com/googleads/googleads-mobile-unity/issues/2343
So we downgraded the plugin to 7.2.0. and it is now working fine.

 

Ok, if you get a chance, try the above solution and let me know if it works

 

ok. we will try that too. thanks for helping me out

 

@Voxel-Busters I tried your solution, but I get the following error:

Code (CSharp):

1.  
2. * What went wrong:
3. A problem occurred configuring project ':launcher'.
4. > Could not resolve all artifacts for configuration ':launcher:classpath'.
5.    > Could not resolve com.guardsquare:proguard-base:7.1.0.
6.      Required by:
7.          project :launcher > com.guardsquare:proguard-gradle:7.1.0
8.       > Could not resolve com.guardsquare:proguard-base:7.1.0.
9.          > Could not get resource 'https://jcenter.bintray.com/com/guardsquare/proguard-base/7.1.0/proguard-base-7.1.0.module'.
10.             > Could not GET 'https://jcenter.bintray.com/com/guardsquare/proguard-base/7.1.0/proguard-base-7.1.0.module'.
11.                > Read timed out
12.  
13.  

UPDATE: I solved it by adding mavenCentral() to the repositories:

Code (CSharp):

1. buildscript {
2.         repositories {**ARTIFACTORYREPOSITORY**
3.             google()
4.             mavenCentral()
5.             jcenter()
6.         }
7.  
8.         dependencies {
9.             // If you are changing the Android Gradle Plugin version, make sure it is compatible with the Gradle version preinstalled with Unity
10.             // See which Gradle version is preinstalled with Unity here https://docs.unity3d.com/Manual/android-gradle-overview.html
11.             // See official Gradle and Android Gradle Plugin compatibility table here https://developer.android.com/studio/releases/gradle-plugin#updating-gradle
12.             // To specify a custom Gradle version in Unity, go do "Preferences > External Tools", uncheck "Gradle Installed with Unity (recommended)" and specify a path to a custom Gradle version
13.             classpath 'com.android.tools.build:gradle:4.0.1'
14.             classpath 'com.guardsquare:proguard-gradle:7.1.0'
15.             **BUILD_SCRIPT_DEPS**
16.         }
17.     }

 

JCenter is down! Just delete it or move it to bottom so that others get priority!

 

@Voxel-Busters Thanks. Yesterday it worked fine, but today it fails with a different message. "java.lang.UnsupportedOperationException: This feature requires ASM7"
Any idea what might be causing this?

Code (CSharp):

1. error processing C:\UnityProjects\Library\Bee\Android\Prj\IL2CPP\Gradle\launcher\build\intermediates\shrunk_jar\release\minified.jar
2. java.lang.UnsupportedOperationException: This feature requires ASM7
3.     at org.objectweb.asm.ClassVisitor.visitNestHost(ClassVisitor.java:150)
4.     at org.objectweb.asm.ClassReader.accept(ClassReader.java:541)
5.     at org.objectweb.asm.ClassReader.accept(ClassReader.java:391)
6.     at com.android.builder.desugaring.DesugaringClassAnalyzer.analyze(DesugaringClassAnalyzer.java:153)
7.     at com.android.builder.desugaring.DesugaringClassAnalyzer.analyzeJar(DesugaringClassAnalyzer.java:100)
8.     at com.android.builder.desugaring.DesugaringClassAnalyzer.analyze(DesugaringClassAnalyzer.java:68)
9.     at com.android.build.gradle.internal.tasks.DesugarIncrementalHelper.lambda$getInitalGraphData$4(DesugarIncrementalHelper.java:146)
10.     at java.util.concurrent.ForkJoinTask$AdaptedCallable.exec(ForkJoinTask.java:1424)
11.     at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
12.     at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
13.     at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
14.     at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)
15.  
16. FAILURE: Build failed with an exception.
17.  
18. * What went wrong:
19. Execution failed for task ':launcher:dexBuilderRelease'.
20. > java.lang.UnsupportedOperationException: This feature requires ASM7
21.  

UPDATE: Switching Target API level to 30 then back to 31 and now it is building fine. I have no idea what is going on.

 

Not sure what could be the reason, but please let us know if you hit this issue again.

 

@domonyiv This is a fake error

Try this steps.

1. Just do a clean build.

if it does not work

2. Close and open unity, Change Max API to 32 try a build and Change it back to something different and try again.

I think it is something related to a cache problem inside unity.



UPDATE: I did not saw your update Glad it worked for you.

 

Can you please elaborate more on this , it will be helpfull . And can you also tell how to install API 32 components?
your help is appreciated
update :- I tried API 32 and it worked. Thanks a lot !!!!

 

This solution worked for me

 

i selected Target API32 and try build, and this error still appears (also i try use version admob 7.2.0 and no result)

 

Same happened, I'd tried many things to make it work again, but it fail. Got error java.lang.UnsupportedOperationException: This feature requires ASM7

 

@scorp2007 Can you share the error log?

@vizgl please try the steps I recommended.

Most importantly. CLEAN BUILD AND CHANGE TARGET API.

 

In Publishing Setting, under Minify section, enable "Use R8" and make build with target api set to 33. For more information on Minify, can check, https://forum.unity.com/threads/wha...-should-i-change-it-before-publishing.870061/

 

Thanks Supratim, that worked for me.

 

this fixed the problem for me thanks

 

I solved it by enabling R8, API Level 33 and downgrading Google Admob Package from version 7.3.1 to 7.0.2. No custom build / gradle files. After saving these settings, close Unity and delete .android & .gradle folders in C\:users/YourPCName/.... restart Unity and build. I also changed apk file directory but not sure which one of these settings worked.

 

• btw fixed mine by downloading the gradle from here https://services.gradle.org/distributions/gradle-6.9.3-bin.zip
• and then assigning it on my External Tools. tho it says You are not Using the recommended Gradle other versions are not officially supported.

 

What helped me in similar situation - delete Library folder.

 

Are any of you getting an issue after applying some of these fixes, where you're able to compile the app-package or apk, but Admob just isn't loading any ads while testing on an actual mobile device? I've been banging my head against the wall for a few days trying to figure this out. My admob account is all set, I do have a previous test version that was properly loading ads and if I load it up it still does. I just need to know if not, then it has to do something with my implementation.

 

Try Setting your "Minumum API Level to 24"

 

I have the same problem and I can't find a solution, I have already tried with different versions of google mobile ads, but when I apply everything, test ads appear in the editor but when I make the build and open it in any phone, not even the test ads appear.

 

Thanks a lot. this worked for me.

 

Thanks, I had a similar problem in Editor 2021.3.21f1 , I chose API Level 32 and check the option User R8 in Player Settings, and that worked for me

 

Try with API level 33 now as new norm is coming up where google expects only builds targetting api 33 from Aug 31 2023. Please check this reference.

 

I used the guide in the link to modify the progaurd file and it worked for me

just in case, if the link didn't work
Solution:

Build Settings > Player Setting > Publishing Settings > Custom Progurard File

Code (Boo):

1. -keep class com.google.unity.** {
2.    *;
3. }
4. -keep public class com.google.android.gms.ads.**{
5.    public *;
6. }
7. -keep public class com.google.ads.**{
8.    public *;
9. }
10. -keepattributes *Annotation*
11. -dontobfuscate

 

In my case using 2020.3.34f1, setting these settings, especially toggle off the release,
and target api 33 solved my issue.