Publishing Convai with UE5.4 (How to)

Unreal Engine Questions
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For those of you still using UE5.4 with Convai and publishing to Android, I thought I would share my experiences. Publishing to Console is a bit more involved than deploying to your mobile device.

Here are all the the steps I needed to do:

  • While Epic say not to do it, migrate Android SDK to version 35:

    • Upgrade Gradle to 8.9

      • C:\Program Files\Epic Games\UE_5.4\Engine\Build\Android\Java\gradle\build.gradle

      }

      dependencies {

    classpath project.hasProperty('ANDROID_TOOLS_BUILD_GRADLE_VERSION') ? project.property('ANDROID_TOOLS_BUILD_GRADLE_VERSION') : 'com.android.tools.build:gradle:8.9.0'

}

      • C:\Program Files\Epic Games\UE_5.4\Engine\Build\Android\Java\gradle\gradle\wrapper\gradke-wrapper.properties

        • distributionUrl=https\://services.gradle.org/distributions/gradle-8.9-all.zip

      • Cmd

        • .\gradlew.bat --gradle-version 8.9 --distribution-type bin

    • Fix Google Play AIDL submission

      • C:\Program Files\Epic Games\UE_5.4\Engine\Build\Android\Java\gradle\app\build.gradle
        • Add these two lines in the dependencies block
          def billing_version = “6.1.0”
          implementation “com.android.billingclient:billing:$billing_version”

    • Install Android SDK 35

    • Install NDK → 26.2.11394342

    • Adjust Android.jar file

      • Copy C:\Users\\AppData\Local\Android\Sdk\platforms\android-34\android.jar
      • Past C:\Users\\AppData\Local\Android\Sdk\platforms\android-35\android.jar
      • Paste C:\Users\\AppData\Local\Android\Sdk\platforms\android-35-ext14\android.jar

    • Reset Project Settings->Platforms - Android SDK

      • Location of Android NDK=C:/Users//AppData/Local/Android/Sdk/ndk/26.2.11394342
      • SDK API Level = android-35
      • NDK API Level=android-26

    • Project Settings->Platforms Android

      • Target SDK version=35

    • Update Convail Plugin (3.6.7)

      • Default plugin from FAB causes .aab creation to fail
        • UATHelper: Packaging (Android (ETC2)): Execution failed for task ‘:app:checkReleaseDuplicateClasses’.
        • Updating the Convail Plugin seemed to fix the problem

    • Turn off Android File Share Plugin

      • New plugin creates unhappiness with the Android File Share plugin
        • Simply turn it off

I think this is all that I need to adjust beyond just deploying right to device.
If you have and additional steps or insights, please advise.

Happy Android publishing

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