Error when creating Android standalone

[panagiotis merakos]

Hello Klaus,

Prior to 10.0.3 rc1, the version of the SDK build-tools has to be strictly
31.0.0 - any newer versions installed have to be removed.

Kind regards,
Panos

On Tue, 14 Oct 2025, 20:17 Klaus major-k via use-livecode, <
use-livecode at lists.runrev.com> wrote:

> Hi all,
>
> I just created a new selfsigned keystore with Android Studio and wanted to
> test this with LC 10.0.2, with JAVA 8 still installed.
> I did Not update to JAVA < 8 yet.
>
> But I got this error:
>
> ----------------------------------------------------------------------------------
> There was an error while saving the standalone application could not
> encode class bundle - error:
> Exception in thread "main" java.lang. UnsupportedClassVersionError:
> com/android/tools/r8/D8 has been compiled by a more recent version of the
> Java Runtime (class file version 55.0), this version of the Java Runtime
> only recognizes class file versions up to 52.0
> at java.lang.ClassLoader.defineClass 1 (Native Method) at
> java.lang.ClassLoader.defineClass(ClassLoader.java:756)
> at java.security SecureClassLoader.defineClass(SecureClassLoader.java:142)
> at java.net.URLClassLoader.defineClass(URLClassLoader.java:473)|
> at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
> at java.net.URLClassLoaderS1.run(URLClassLoader.java:369)
> at java.net.URLClassLoaderS1.run(URLClassLoader.java:363)
> at java.security.AccessController.doPrivileged(Native Method) at
> java.net.URLClassLoader.findClass(URLClassLoader.java:362)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
> at sun.misc.LauncherSAppClassLoader.loadClass(Launcher.java:371)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
> at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:642)
>
> ----------------------------------------------------------------------------------
>
> macOS 26.0.1
> LC 10.0.2
>
> Android Studio:
> ----------------------------------------
> Android Studio Iguana | 2023.2.1 Patch 1
> Build #AI-232.10300.40.2321.11567975, built on March 13, 2024
> Runtime version: 17.0.9+0-17.0.9b1087.7-11185874 aarch64
> VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
> macOS 26.0.1
> GC: G1 Young Generation, G1 Old Generation
> Memory: 2048M
> Cores: 8
> Metal Rendering is ON
> Registry:
>     ide.experimental.ui=true
> ------------------------------------------
> What is wrong with my setup?
> Thanks a lot in advance!
>
>
> Best
>
> Klaus
> --
> Klaus Major
> https://www.major-k.de
> https://www.major-k.de/bass
> klaus at major-k.de
>
>
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