Java Question [SOLVED] Cannot find the class from the package error

[Pendrush]

I am trying to update UnityAds wrapper, however, B4A reports that it cannot find the class from the package gatewayprotocol.v1, even though it is already present in classes.jar and of course in unity-ads.aar.

Is there a solution?

Library aar is HERE.

banner_activity_create (java line: 356)
java.lang.NoClassDefFoundError: Failed resolution of: Lgatewayprotocol/v1/NativeConfigurationOuterClass$NativeConfiguration;
at com.unity3d.services.core.di.ServiceProvider$initialize$1.invoke(ServiceProvider.kt:1092)
at com.unity3d.services.core.di.ServiceProvider$initialize$1.invoke(ServiceProvider.kt:285)
at com.unity3d.services.core.di.ServicesRegistryKt.registry(ServicesRegistry.kt:106)
at com.unity3d.services.core.di.ServiceProvider.initialize(ServiceProvider.kt:285)
at com.unity3d.services.core.di.ServiceProvider.<clinit>(ServiceProvider.kt:281)
at com.unity3d.services.core.misc.Utilities.getService(Utilities.java:212)
at com.unity3d.services.core.misc.Utilities.getService(Utilities.java:216)
at com.unity3d.services.core.device.Device.<clinit>(Device.java:60)
at com.unity3d.services.UnityServices.initialize(UnityServices.kt:109)
at com.unity3d.services.ads.UnityAdsImplementation.initialize(UnityAdsImplementation.java:66)
at com.unity3d.ads.UnityAds.initialize(UnityAds.kt:60)
at com.pendrush.unityads.wrapper.UnityAdsWrap.InitializeBanner2(UnityAdsWrap.java:59)
at com.pendrush.unityads.wrapper.UnityAdsWrap.InitializeBanner(UnityAdsWrap.java:54)
at b4a.example.banner._activity_create(banner.java:356)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:221)
at b4a.example.banner.afterFirstLayout(banner.java:105)
at b4a.example.banner.access$000(banner.java:17)
at b4a.example.banner$WaitForLayout.run(banner.java:83)
at android.os.Handler.handleCallback(Handler.java:959)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loopOnce(Looper.java:232)
at android.os.Looper.loop(Looper.java:317)
at android.app.ActivityThread.main(ActivityThread.java:8705)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:580)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:886)
Caused by: java.lang.ClassNotFoundException: gatewayprotocol.v1.NativeConfigurationOuterClass$NativeConfiguration
... 27 more

 

[DonManfred]

most probably it is a dependency.

Upload the Androidstudio-projekt for the aar.

Or the maven link to the project. maybe there is a POM file from which you could see the dependencies.

 

[DonManfred]

https://repo1.maven.org/maven2/com/unity3d/ads/unity-ads/4.12.5/unity-ads-4.12.5.pom

So you need to add references to - at leeast - this

<dependencies>
<dependency>
<groupId>androidx.activity</groupId>
<artifactId>activity-ktx</artifactId>
<version>1.7.1</version>
</dependency>
<dependency>
<groupId>androidx.core</groupId>
<artifactId>core-ktx</artifactId>
<version>1.9.0</version>
</dependency>
<dependency>
<groupId>androidx.lifecycle</groupId>
<artifactId>lifecycle-process</artifactId>
<version>2.6.1</version>
</dependency>
<dependency>
<groupId>androidx.lifecycle</groupId>
<artifactId>lifecycle-runtime-ktx</artifactId>
<version>2.6.1</version>
</dependency>
<dependency>
<groupId>androidx.startup</groupId>
<artifactId>startup-runtime</artifactId>
<version>1.1.1</version>
</dependency>
<dependency>
<groupId>androidx.webkit</groupId>
<artifactId>webkit</artifactId>
<version>1.6.1</version>
</dependency>
<dependency>
<groupId>androidx.datastore</groupId>
<artifactId>datastore</artifactId>
<version>1.0.0</version>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlinx</groupId>
<artifactId>kotlinx-coroutines-android</artifactId>
<version>1.6.4</version>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-stdlib-jdk8</artifactId>
<version>1.8.10</version>
</dependency>
<dependency>
<groupId>com.squareup.okhttp3</groupId>
<artifactId>okhttp</artifactId>
<version>3.12.13</version>
</dependency>
<dependency>
<groupId>com.google.protobuf</groupId>
<artifactId>protobuf-kotlin-lite</artifactId>
<version>3.21.12</version>
</dependency>
<dependency>
<groupId>androidx.work</groupId>
<artifactId>work-runtime-ktx</artifactId>
<version>2.7.0</version>
</dependency>
<dependency>
<groupId>com.google.android.gms</groupId>
<artifactId>play-services-cronet</artifactId>
<version>18.0.1</version>
</dependency>
</dependencies>
</project>

 

[Pendrush]

Missing class is already inside classes.jar and in unity-ads.aar. You can see it in first screenshot.

 

[Erel]

The signature of this class is:

 public static final class NativeConfiguration extends GeneratedMessageLite<NativeConfiguration, Builder> implements NativeConfigurationOrBuilder

You are probably missing GeneratedMessageLite which is part of protobuf. Maybe this one: https://mvnrepository.com/artifact/com.google.protobuf/protobuf-javalite/4.29.2

 

[Pendrush]

That is a missing part. protobuf-kotlin-lite is just a wrapper around protobuf-java-lite.