764 Errors After adding admob

Question

First I was on unity 2019.2.x version then I updated to 2019.3.x version.
On 2019.2.x I had google play services with online save.
Then I added admob for ads (after updating to 2019.3.x) and when I tried to build for android there was 764 errors:
1x OperationCanceledException: The operation was canceled.
2x CommandInvokationFailure: Gradle build failed.
1x java.lang.RuntimeException: Duplicate class android.support.v4.app.INotificationSideChannel found in modules classes.jar (:androidx.core.core-1.0.0:) and classes.jar (:core-1.1.0:)
And a lot of (700+)x Duplicate class android.support.v4.os.IResultReceiver$Stub$Proxy found in modules classes.jar (:androidx.core.core-1.0.0:) and classes.jar (:core-1.1.0:)
and 1x CommandInvokationFailure: Gradle build failed.

Any ideas what happened and how to fix that? It works in editor...

Answer 1

Best Answer

Answer by ddule · Jan 04, 2020 at 12:25 PM

Assets - > Play Services Resolver -> Android Resolver - > Resolve
That fixed all errors.

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Answer 2

I have the same error but when i use: Assets - > Play Services Resolver -> Android Resolver - > Resolve or force resolve , not resolve the problem. Always 70 errors:

FAILURE: Build failed with an exception. * What went wrong: Execution failed for task ':checkReleaseDuplicateClasses'.

1 exception was raised by workers:

java.lang.RuntimeException: java.lang.RuntimeException: Duplicate class android.support.v4.app.INotificationSideChannel found in modules classes.jar (:androidx.core.core-1.0.0:) and classes.jar (:support-compat-25.1.0:) Duplicate class android.support.v4.app.INotificationSideChannel$Stub found in modules classes.jar (:androidx.core.core-1.0.0:) and classes.jar (:support-compat-25.1.0:) Duplicate class android.support.v4.app.INotificationSideChannel$Stub$Proxy found in modules classes.jar (:androidx.core.core-1.0.0:) and classes.jar (:support-compat-25.1.0:) Duplicate class android.support.v4.os.IResultReceiver found in modules classes.jar (:androidx.core.core-1.0.0:) and classes.jar (:support-compat-25.1.0:) Duplicate class android.support.v4.os.IResultReceiver$Stub found in modules classes.jar (:androidx.core.core-1.0.0:) and classes.jar (:support-compat-25.1.0:) Duplicate class android.support.v4.os.IResultReceiver$Stub$Proxy found in modules classes.jar (:androidx.core.core-1.0.0:) and classes.jar (:support-compat-25.1.0:)............. The problem comes from when i install FirebaseMessaging.unitypackage. How to fix that? Thank.

764 Errors After adding admob

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