Extrenal Dependency Manager fails the development build

[Martinecko30]

[REQUIRED] Step 1: Describe your environment

• Unity version: 6000.0.31f and 6000.0.29f1
• Google Mobile Ads Unity plugin version: 9.5.0
• Plugin installation method: .unitypackage import
• Platform: Unity Editor
• Platform OS version: Windows 10 (eg iOS 10, Android 9)
• Any specific devices issue occurs on: None
• Mediation ad networks used, and their versions: Default AdMob

[REQUIRED] Step 2: Describe the problem

Steps to reproduce:

Download Unity Google Play Games plugin (ver. 2.0.0) with this plugin, now the External Dependency Manager will not allow development builds and will throw errors:

[pram:13.096][err] FAILURE: Build failed with an exception.
[pram:13.096][err]
[pram:13.096][err] * What went wrong:
[pram:13.096][err] Execution failed for task ':launcher:mergeLibDexDebug'.
[pram:13.096][err] > Could not resolve all files for configuration ':launcher:debugRuntimeClasspath'.
[pram:13.096][err] > Failed to transform classes.jar (project :unityLibrary) to match attributes {artifactType=android-dex, com.android.build.api.attributes.AgpVersionAttr=8.3.0, com.android.build.api.attributes.BuildTypeAttr=debug, com.android.build.gradle.internal.attributes.VariantAttr=debug, dexing-component-attributes=ComponentSpecificParameters(minSdkVersion=23, debuggable=true, enableCoreLibraryDesugaring=false, enableGlobalSynthetics=true, enableApiModeling=false, dependenciesClassesAreInstrumented=false, asmTransformComponent=null, useJacocoTransformInstrumentation=false, enableDesugaring=true, needsClasspath=true, useFullClasspath=false, componentIfUsingFullClasspath=null), org.gradle.libraryelements=jar, org.gradle.usage=java-runtime}.
[pram:13.096][err] > Could not resolve all files for configuration ':launcher:debugRuntimeClasspath'.
[pram:13.096][err] > No variants of com.google.games:gpgs-plugin-support:2.0.0 match the consumer attributes:
[pram:13.096][err] - com.google.games:gpgs-plugin-support:2.0.0 configuration runtime declares a library for use during runtime:
[pram:13.096][err] - Incompatible because this component declares a component, as well as attribute 'artifactType' with value 'srcaar' and the consumer needed a component, as well as attribute 'artifactType' with value 'android-classes-jar'
[pram:13.096][err] - Other compatible attributes:
[pram:13.096][err] - Doesn't say anything about com.android.build.api.attributes.AgpVersionAttr (required '8.3.0')
[pram:13.096][err] - Doesn't say anything about com.android.build.api.attributes.BuildTypeAttr (required 'debug')
[pram:13.096][err] - Doesn't say anything about dexing-component-attributes (required 'ComponentSpecificParameters(minSdkVersion=23, debuggable=true, enableCoreLibraryDesugaring=false, enableGlobalSynthetics=true, enableApiModeling=false, dependenciesClassesAreInstrumented=false, asmTransformComponent=null, useJacocoTransformInstrumentation=false, enableDesugaring=true, needsClasspath=true, useFullClasspath=false, componentIfUsingFullClasspath=null)')
[pram:13.096][err] - Doesn't say anything about its target Java environment (preferred optimized for Android)
[pram:13.096][err]

Relevant Code:

None, you just need to try making a development Android build and it will fail.

[dipupo6]

I also encountered this error recently, reverting target API Level from 35 back to 34 helps me build for now. I initially thought it was because I'm using a fairly old Unity version (2020.x.x), but seeing now that the error occurs on the latest Unity version, probably means it's a dependency conflict issue.

[Martinecko30]

Very well might be!

You seem to find a better fix than I do, but unfortunately I need to have it set to API 35 as that's where I test it on.

For anyone else, you can uncheck the External Dependency Manager from Google ads plugin when importing and use the one provided in Google Play Games plugin

[dipupo6]

For anyone else, you can uncheck the External Dependency Manager from Google ads plugin when importing and use the one provided in Google Play Games plugin

That works correctly?

[Martinecko30]

I'm experiencing some Google Ads GUI errors but nothing is broken (yet).

Also, don't import it from the package manager as it won't work either. And there you can't resolve the Extrenal dependency Manager as it is bound as dependency to both of the plugins

[Shamsad-Madovergames]

Very well might be!

You seem to find a better fix than I do, but unfortunately I need to have it set to API 35 as that's where I test it on.

For anyone else, you can uncheck the External Dependency Manager from Google ads plugin when importing and use the one provided in Google Play Games plugin

Thanks. It worked like charm

[NVentimiglia]

We recommend using Gradle for android builds

https://developers.google.com/admob/unity/android

[Martinecko30]

We recommend using Gradle for android builds

https://developers.google.com/admob/unity/android

I don't see how this is relevant? The Extrenal Dependency Manager already uses Gradle to build the project. The issue is bundled into the provided plugin, not the project. (This is confirmed by other users experiencing similar issue)

[NVentimiglia]

@Martinecko30 What are your replication steps?

I installed the latest Google Play Games and Unity Plugin and things worked fine on my end.

The Multidex implies that there is too much java code in the project, do you have other dependencies as well?

https://developer.android.com/build/multidex

[Martinecko30]

I'm currently unable to provide any more information but generally no, not any that would add any more Java code. There are several that use the C# that are made in Unity. Only two being from Google are Google Play plugin with Google Ads Mobile plugin.

As previously mentioned, this affects creating a dev build that is patched on the testing device. The only workaround I found is mentioned in this thread. It worked with normal builds, but those take too long for testing which results in much lower production speed.

[NVentimiglia]

If you can upload a minimal sample or list out these dependencies, would take a look.