My java version is unnable to support android-24 API, even after I updated it

Development Platform & Builds Mobile
, , , , ,
1

I’m trying to package a project for VR on UE4.15, and the versions requested of the android sdk are 24 or 25. I already tried to unninstal all AndroidWorks, all SDK’s, NDK’s and java, to reinstall all again with all the latest versions of each, but even after that, the same error appear on my packaging project:

UATHelper: Packaging (Android (All)): [proguard] Reading program jar [C:\Users\Documents\Unreal Projects\CyberGunVR 4.15\Intermediate\Android\APK\JavaLibs\common_library\libs\protobuf-javanano-3.0.0-alpha-7.jar]

UATHelper: Packaging (Android (All)): [proguard] Reading program jar [C:\Users\Documents\Unreal Projects\CyberGunVR 4.15\Intermediate\Android\APK\JavaLibs\support-v4-23.0.0\libs\support-v4-23.0.0.jar]

UATHelper: Packaging (Android (All)): [proguard] Reading program jar [C:\Users\Documents\Unreal Projects\CyberGunVR 4.15\Intermediate\Android\APK\JavaLibs\play-services-auth-base-9.2.0\libs\play-services-auth-base-9.2.0.jar]

UATHelper: Packaging (Android (All)): [proguard] Reading program jar [C:\Users\Documents\Unreal Projects\CyberGunVR 4.15\Intermediate\Android\APK\JavaLibs\play-services-gass-9.2.0\libs\play-services-gass-9.2.0.jar]

UATHelper: Packaging (Android (All)): [proguard] Reading program jar [C:\Users\Documents\Unreal Projects\CyberGunVR 4.15\Intermediate\Android\APK\JavaLibs\play-services-tasks-9.2.0\libs\play-services-tasks-9.2.0.jar]

UATHelper: Packaging (Android (All)): [proguard] Reading program jar [C:\Users\Documents\Unreal Projects\CyberGunVR 4.15\Intermediate\Android\APK\JavaLibs\play-services-drive-9.2.0\libs\play-services-drive-9.2.0.jar]

UATHelper: Packaging (Android (All)): [proguard] Reading program jar [C:\Users\Documents\Unreal Projects\CyberGunVR 4.15\Intermediate\Android\APK\JavaLibs\play-services-ads-9.2.0\libs\play-services-ads-9.2.0.jar]

UATHelper: Packaging (Android (All)): [proguard] Reading program jar [C:\Users\Documents\Unreal Projects\CyberGunVR 4.15\Intermediate\Android\APK\JavaLibs\play-services-ads-lite-9.2.0\libs\play-services-ads-lite-9.2.0.jar]

UATHelper: Packaging (Android (All)): [proguard] Reading program jar [C:\Users\Documents\Unreal Projects\CyberGunVR 4.15\Intermediate\Android\APK\JavaLibs\play-services-auth-9.2.0\libs\play-services-auth-9.2.0.jar]

UATHelper: Packaging (Android (All)): [proguard] Reading library jar [C:\Program Files (x86)\Android\android-sdk\platforms\android-24\android.jar]

UATHelper: Packaging (Android (All)): BUILD FAILED

UATHelper: Packaging (Android (All)): C:\Program Files (x86)\Android\android-sdk\tools\ant\build.xml:871: Can’t read [C:\Program Files (x86)\Android\android-sdk\platforms\android-24\android.jar] (Can’t process class [dalvik/annotation/TestTargetClass.class] (Unsupported class version number [52.0] (maximum 51.0, Java 1.7)))
UATHelper: Packaging (Android (All)): at proguard.ant.ProGuardTask.execute(ProGuardTask.java:315)

I’m pretty sure that all the paths to these files requested are right, so i’m pretty lost about what to do. I think that Unreal is using Java 1.7, even after i had updated it to 1.8_121, and that’s why my package process always fails… Can someone give me a hand with this?

2

Try updating your proguard version it’s what I needed to do. Seems to be needed for android sdk 24 as the packaged version with UE4 does not support java 8 afaik.

3

Thank you so much! - Worked haha. But now I got a new problem :frowning:
My app, launched on my phone with 150mb, now have 1.12gb packaged :frowning:
Do you know how to solve this? :frowning:

4

Package for Android ETC2 and tick “create compressed package” in the advanced package settings to get your filesize down

5

It’s already ticked :confused:

6

And which Android texture do you export for? ETC2 or something else?

7

kska,

Could you please upload a screenshot of your Android SDK? Are you able to package using Android-24? Android-25 isn’t supported:

UATHelper: Packaging (Android (ETC2)): Error: Target id 'android-25' is not valid. Use 'android.bat list targets' to get the target ids.
UATHelper: Packaging (Android (ETC2)): UEDeployAndroid.RunCommandLineProgramWithException: Updating project.properties, local.properties, and build.xml for support-v4-23.0.0..
8

Yeah , I’m using Android SDK and NDK 24, now that i’ve updated my proguard, everything is working - thanks

(PS: I’M A BIG FAN OF YOURS -)

9

In fact, I was looking at my content folder, and when i updated my project by UE4.14 to UE4.15, the starter content had been restored .-. Sorry kk everything is working now! Thank you so much dude! You are foda! (this is a great quality here in Brazil)

10

don’t forget to accept the answer then :wink:

11

Wow thank you sir u save my day

12

Thank you so much! You saved my day too. :slight_smile:

13

Wow updating the proguard in C:\android-sdk-windows\tools actually worked for 4.15 ! This is amazing! It got rid of the

BUILD FAILED
UATHelper: Packaging (Android (ASTC)): C:\android-sdk-windows\tools\ant\build.xml:871: Can’t read [C:\android-sdk-windows\platforms\android-27\android.jar] (Can’t process class [android/R$xml.class] (Unsupported class version number [52.0] (maximum 51.0, Java 1.7)))

Thanks so much.