Question Class Not Found Exception on mobile build

Trying to migrate from Unity Ads Mediation to IronSource. Currently getting a Class Not Found Exception on the mobile build when trying to play a rewarded video ad (seen with Android Log Cat).

Steps taken so far:

• app key in script
• uninstall unity ads
• install ironsource levelplay
• put app key in settings
• created IronSource account and entered in test Android phone details
• installed networks on integration manager (everything is up to date on latest adapter version)
• Google Play services permission per migration guide for Unity(https://developers.is.com/ironsource-mobile/unity/unity-plugin/#step-3)
  
• Resolve and force resolve dependencies
• Unity 2020+ gradle.properties (I currently use Unity 2021.2.9f1)

I've followed the migration guide step by step, more details are needed in the documentation. I do not use proguard and do not have it enabled and thus not followed those steps in the documentation.


Error:

Code (CSharp):

1. 2023/01/10 12:59:28.337 10067 10125 Error Unity AndroidJavaException: java.lang.ClassNotFoundException: com.ironsource.unity.androidbridge.AndroidBridge
2. 2023/01/10 12:59:28.337 10067 10125 Error Unity java.lang.ClassNotFoundException: com.ironsource.unity.androidbridge.AndroidBridge
3. 2023/01/10 12:59:28.337 10067 10125 Error Unity     at java.lang.Class.classForName(Native Method)
4. 2023/01/10 12:59:28.337 10067 10125 Error Unity     at java.lang.Class.forName(Class.java:454)
5. 2023/01/10 12:59:28.337 10067 10125 Error Unity     at com.unity3d.player.UnityPlayer.nativeRender(Native Method)
6. 2023/01/10 12:59:28.337 10067 10125 Error Unity     at com.unity3d.player.UnityPlayer.access$300(Unknown Source:0)
7. 2023/01/10 12:59:28.337 10067 10125 Error Unity     at com.unity3d.player.UnityPlayer$e$1.handleMessage(Unknown Source:95)
8. 2023/01/10 12:59:28.337 10067 10125 Error Unity     at android.os.Handler.dispatchMessage(Handler.java:102)
9. 2023/01/10 12:59:28.337 10067 10125 Error Unity     at android.os.Looper.loopOnce(Looper.java:201)
10. 2023/01/10 12:59:28.337 10067 10125 Error Unity     at android.os.Looper.loop(Looper.java:288)
11. 2023/01/10 12:59:28.337 10067 10125 Error Unity     at com.unity3d.player.UnityPlayer$e.run(Unknown Source:20)
12. 2023/01/10 12:59:28.337 10067 10125 Error Unity Caused by: java.lang.ClassNotFoundException: com.ironsource.unity.androidbridge.AndroidBridge
13. 2023/01/10 12:59:28.337 10067 10125 Error Unity     ... 9 more
14. 2023/01/10 12:59:28.337 10067 10125 Error Unity   at UnityEngine.AndroidJNISafe.CheckException () [0x00000] in <00000000000000000000000000000000>:0
15. 2023/01/10 12:59:28.337 10067 10125 Error Unity   at UnityEngine.AndroidJNISafe.FindClass (System.String name) [0x00000] in <00000000000000000000000000000000>:0
16. 2023/01/10 12:59:28.337 10067 10125 Error Unity   at UnityEngi
17.  

 

Okay will do

 

I have sent the request and haven't received any response yet.

 

No errors with resolving dependencies. Still waiting on IronSource team to respond to my request. Any other suggestions in mean time?

 

^Yes, I do see this in the project.

Alond357, trying your suggestion now

 

Getting an error on build to the android phone here after moving the android-bridge file
link to screenshot of errors: https://ibb.co/WHvVc9c


Error code snippet:

Code (CSharp):

1. Note: C:\Users\Alina\XXX\Library\Bee\Android\Prj\IL2CPP\Gradle\unityLibrary\src\main\java\com\unity3d\player\UnityPlayerActivity.java uses or overrides a deprecated API.
2. Note: Recompile with -Xlint:deprecation for details.
3. Note: Some input files use unchecked or unsafe operations.
4. Note: Recompile with -Xlint:unchecked for details.
5. java.util.NoSuchElementException: Key C:\Users\Alina\.gradle\caches\transforms-2\files-2.1\ad38681eaa06eaccdf7d5833b34c2e9b\jetified-com.parse.bolts.bolts-applinks-1.4.0.jar is missing in the map.

 

have same problem any update ?

2023/02/22 17:55:24.651 14434 14475 Error Unity AndroidJavaException: java.lang.ClassNotFoundException: com.ironsource.unity.androidbridge.AndroidBridge
2023/02/22 17:55:24.651 14434 14475 Error Unity java.lang.ClassNotFoundException: com.ironsource.unity.androidbridge.AndroidBridge
2023/02/22 17:55:24.651 14434 14475 Error Unity at java.lang.Class.classForName(Native Method)
2023/02/22 17:55:24.651 14434 14475 Error Unity at java.lang.Class.forName(Class.java:454)
2023/02/22 17:55:24.651 14434 14475 Error Unity at com.unity3d.player.UnityPlayer.nativeRender(Native Method)
2023/02/22 17:55:24.651 14434 14475 Error Unity at com.unity3d.player.UnityPlayer.access$300(Unknown Source:0)
2023/02/22 17:55:24.651 14434 14475 Error Unity at com.unity3d.player.UnityPlayer$e$1.handleMessage(Unknown Source:83)
2023/02/22 17:55:24.651 14434 14475 Error Unity at android.os.Handler.dispatchMessage(Handler.java:102)
2023/02/22 17:55:24.651 14434 14475 Error Unity at android.os.Looper.loopOnce(Looper.java:210)
2023/02/22 17:55:24.651 14434 14475 Error Unity at android.os.Looper.loop(Looper.java:299)
2023/02/22 17:55:24.651 14434 14475 Error Unity at com.unity3d.player.UnityPlayer$e.run(Unknown Source:24)
2023/02/22 17:55:24.651 14434 14475 Error Unity Caused by: java.lang.ClassNotFoundException: com.ironsource.unity.androidbridge.AndroidBridge
2023/02/22 17:55:24.651 14434 14475 Error Unity ... 9 more
2023/02/22 17:55:24.651 14434 14475 Error Unity at UnityEngine.AndroidJNISafe.CheckException () [0x00000] in <00000000000000000000000000000000>:0
2023/02/22 17:55:24.651 14434 14475 Error Unity at UnityEngine.AndroidJNISafe.FindClass (System.String name) [0x00000] in <00000000000000000000000000000000>:0

 

any update on this?

 

No update on my end. Email from LevelPlay team said reference this thread. Issue is not resolved. Please provide other solutions! Thanks!

 

This worked for me, and ensure you tick the android platform box. Also, make sure you init your ads correctly for the platform you want.

 

I'm getting a similar problem when running an android application, but with a slightly different error.
Followed the initialization documentation. Already wrote to the support.
Also found an issue with ios build after installing Unity.Ads Adapter. No specific errors are shown in Cloud's console.

C:\workspace\workspace\p\Assets\Scripts\Monetization\Application\IronSourceWrapper.cs: UnityEngine.AndroidJavaException: java.lang.NoClassDefFoundError: Failed resolution of: Lcom/ironsource/mediationsdk/sdk/ISDemandOnlyInterstitialListener;
at UnityEngine.AndroidJNISafe.CheckException () [0x00000] in <00000000000000000000000000000000>:0
at UnityEngine.AndroidJNISafe.FindClass (System.String name) [0x00000] in <00000000000000000000000000000000>:0
at UnityEngine.AndroidJavaClass._AndroidJavaClass (System.String className) [0x00000] in <00000000000000000000000000000000>:0
at IronSourceConfig..ctor () [0x00000] in <00000000000000000000000000000000>:0
at IronSourceConfig.get_Instance () [0x00000] in <00000000000000000000000000000000>:0
at Monetization.Application.IronSourceWrapper.InitAsync () [0x00000] in <00000000000000000000000000000000>:0
at Monetization.Application.IronSourceWrapper.InitAsync () [0x00000] in <00000000000000000000000000000000>:0
at Management.InitializationManager.StartUpAsync () [0x00000] in <00000000000000000000000000000000>:0
at Cysharp.Threading.Tasks.UniTaskCompletionSourceCore`1[TResult].TrySetResult (TResult result) [0x00000] in <00000000000000000000000000000000>:0
at Management.PlayerDataManager.LoadPlayerDataAsync () [0x00000] in <00000000000000000000000000000000>:0
at Cysharp.Threading.Tasks.UniTaskCompletionSourceCore`1[TResult].TrySetResult (TResult result) [0x00000] in <00000000000000000000000000000000>:0
at Management.StoryLoader.LoadStoryAsync () [0x00000] in <00000000000000000000000000000000>:0
at Cysharp.Threading.Tasks.UniTaskCompletionSourceCore`1[TResult].TrySetResult (TResult result) [0x00000] in <00000000000000000000000000000000>:0
at Network.StoryAPI.GetStoriesAsync () [0x00000] in <00000000000000000000000000000000>:0
at System.Threading.Tasks.AwaitTaskContinuation.RunCallback (System.Threading.ContextCallback callback, System.Object state, System.Threading.Tasks.Task& currentTask) [0x00000] in <00000000000000000000000000000000>:0
at System.Threading.Tasks.Task.FinishContinuations () [0x00000] in <00000000000000000000000000000000>:0
at System.Threading.Tasks.Task`1[TResult].TrySetResult (TResult result) [0x00000] in <00000000000000000000000000000000>:0
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[TResult].SetResult (TResult result) [0x00000] in <00000000000000000000000000000000>:0
at RR.Network.Rest.API`1[TK].GetAsync[T] (System.String route, System.Func`2[T,TResult] customDeserialization) [0x00000] in <00000000000000000000000000000000>:0
at System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) [0x00000] in <00000000000000000000000000000000>:0
at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.Run () [0x00000] in <00000000000000000000000000000000>:0
at System.Threading.Tasks.AwaitTaskContinuation.RunCallback (System.Threading.ContextCallback callback, System.Object state, System.Threading.Tasks.Task& currentTask) [0x00000] in <00000000000000000000000000000000>:0
at System.Threading.Tasks.Task.FinishContinuations () [0x00000] in <00000000000000000000000000000000>:0
at System.Threading.Tasks.Task`1[TResult].TrySetResult (TResult result) [0x00000] in <00000000000000000000000000000000>:0
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[TResult].SetResult (TResult result) [0x00000] in <00000000000000000000000000000000>:0
at RR.Network.Rest.API`1[TK].FormAndSendRequestAsync[T] (System.String route, BestHTTP.HTTPMethods method, System.Object content, System.Boolean isForm, System.Func`2[T,TResult] customDeserialization) [0x00000] in <00000000000000000000000000000000>:0
at System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) [0x00000] in <00000000000000000000000000000000>:0
at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.Run () [0x00000] in <00000000000000000000000000000000>:0
at System.Threading.Tasks.AwaitTaskContinuation.RunCallback (System.Threading.ContextCallback callback, System.Object state, System.Threading.Tasks.Task& currentTask) [0x00000] in <00000000000000000000000000000000>:0
at System.Threading.Tasks.Task.FinishContinuations () [0x00000] in <00000000000000000000000000000000>:0
at System.Threading.Tasks.Task`1[TResult].TrySetResult (TResult result) [0x00000] in <00000000000000000000000000000000>:0
at System.Threading.Tasks.TaskCompletionSource`1[TResult].TrySetResult (TResult result) [0x00000] in <00000000000000000000000000000000>:0
at BestHTTP.Core.RequestEventHelper.HandleRequestStateChange (BestHTTP.Core.RequestEventInfo event) [0x00000] in <00000000000000000000000000000000>:0
at BestHTTP.Core.RequestEventHelper.ProcessQueue () [0x00000] in <00000000000000000000000000000000>:0
at BestHTTP.HTTPManager.OnUpdate () [0x00000] in <00000000000000000000000000000000>:0
at BestHTTP.HTTPUpdateDelegator.CallOnUpdate () [0x00000] in <00000000000000000000000000000000>:0
InitAsync:73

RR.Core.DebugSystem.RRLogger:Error(Exception, String, String, String, Int32)
Monetization.Application.<InitAsync>d__6:MoveNext()
Monetization.Application.IronSourceWrapper:InitAsync()
Management.<StartUpAsync>d__40:MoveNext()
Cysharp.Threading.Tasks.UniTaskCompletionSourceCore`1:TrySetResult(TResult)
Management.<LoadPlayerDataAsync>d__15:MoveNext()
Cysharp.Threading.Tasks.UniTaskCompletionSourceCore`1:TrySetResult(TResult)
Management.<LoadStoryAsync>d__11:MoveNext()
Cysharp.Threading.Tasks.UniTaskCompletionSourceCore`1:TrySetResult(TResult)
Network.<GetStoriesAsync>d__5:MoveNext()
System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1:SetResult(TResult)
RR.Network.Rest.<GetAsync>d__23`1:MoveNext()
System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1:SetResult(TResult)
RR.Network.Rest.<FormAndSendRequestAsync>d__78`1:MoveNext()
System.Threading.Tasks.TaskCompletionSource`1:TrySetResult(TResult)
BestHTTP.Core.RequestEventHelper:HandleRequestStateChange(RequestEventInfo)
BestHTTP.Core.RequestEventHelperrocessQueue()
BestHTTP.HTTPManager:OnUpdate()
BestHTTP.HTTPUpdateDelegator:CallOnUpdate()legatorate()
BestHTTP.HTTPUpdateDelegator:CallOnUpdate()legator:CallOnUpdate()

 

The same problem here!!!

Is it a problem with obfuscating? I used Android SDK 33 and in order to make a build I needed to use R8.
Is there a file that needs to be updated?

 

I've got the same problem. I solved it by:
1. Delete the "Library" folder, and wait the Unity to recompile the project.
2. Update the Iron Source Integration Manager (including all the adapters version).
3. Move the jar from Assets/IronSource/Plugins/Android/IronSource.plugin/libs/android-bridge.jar to Assets/IronSource/Plugins/Android
4. "Update" the "Version Handler" from "External Dependency Manager"
5. Make sure all the integration requirements already implemented, such as IronSource AppKey, Android Manifest, Gradle, and Android Resolver settings
6. Build

Note: I was using Android platform

Hope this could help.

 

The same issue here!!! This is just not acceptable!!!

It was working fine, then I made a new build, and bump up the version, and on one phone it continued to work on the other one I got this error! Both devices use different accounts.

Did anyone find any solution to this?

 

i have fixed by remove one of the ironsource plugin navigate to this folder Assets/IronSource/Plugins/Android/IronSource.plugin and you will find tow file with same name! the problem related when importing the new version of ironsource is make duplicated!!

 

i also have error
2023/08/26 22:34:33.689 12750 12774 Error Unity at IronSourceEventsDispatcher.Update () [0x00000] in <00000000000000000000000000000000>:0




the suggested solution does not help

 

I had a similar problem.
But solved.

Please take a look below.

https://forum.unity.com/threads/issue-migrating-to-unity-2022-lts.1447144/
https://forum.unity.com/threads/issue-migrating-to-unity-2022-lts.1447144/#post-9249588
https://forum.unity.com/threads/issue-migrating-to-unity-2022-lts.1447144/#post-9253863

 

This does not work for me, since deleting the ironsource.plugin also deletes the android manifest file inside, and causes a build error.

 

After updating LevelPlay to the latest version, you should have a folder called IronSource.plugin and IronSource.androidlib in Assets/IronSource/Plugins/Android.

Then remove IronSource.plugin.

Good luck!

 

You are right, I updated it from the IronSource website, I had the version from the Package Manager instead.

 

I had the same issue with duplicated names of android-bridge and ironsource-bridge.
So I reinstall the ironsource skd but this time before the coping of the LevelPlay packages I removed the Ads Mediation and Advertisement Legacy from the Unity by usign the Package Manager and it worked for me.

 

ironsource said it's not a problem

 

I am having the same issue, but there is not such file. There is only "Assets\IronSource\Plugins\Android\IronSource.androidlib\libs\IronSource-bridge.jar"